NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic, and/or descriptive errors.

Heavy-duty T91 barrel nut wrench provides leverage for installing and removing the T91/Wolf A1 barrel. 3/8" and 1/2" sockets are available for attaching to the torque wrench. It is made from 5 mm thick hardened heat-treated steel.

T91 one-piece bolt carrier, designed for use with T91 / Wolf A1 piston system rifle.

Due to customer demand, we are offering a limited quantity of T91 complete bolt carrier group.

This bolt carrier group comes with a chrome-plated 5.56 firing pin, cam pin, 5.56 bolt, and cotter pin.

Bolt: Black Nitride.

Material: Bolt Carrier: 8620, Bolt: SKD61

Weight: 12 oz.

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic, and/or descriptive errors.

Features:

• Standard latch
• Mil-Spec
• For T91 / WA1 upper platform
• 7075 T6 aluminum forging

Made in Taiwan

NOTE: Prices, specifications and availability are subject to change without notice. We reserve the right to correct typographic, photographic and/or descriptive errors.

Material: Steel, Black Finished.

Direct Replacement For T91 / WA1 Upper Receiver.

Certified Gunsmith Recommended.

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic and/or descriptive errors.

Material: 4140 Alloy Steel, HRA 65-68.

Finish: Phosphate.

Direct Replacement For W-A1 Upper Flash Hider.

Adds recoil compensation, designed to counter the vertical movement of the barrel.

Recommended torque is 15-20 ft-lbs, Certified Gunsmith Recommended.

** This item can not ship to California, Massachusetts, New York, and State of New Jersey **

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic, and/or descriptive errors.

For Original T91 Barrel (15mm) Tapped Barrel Lock Pin Included.

This Front Sight Assembly Will Not Fit Wolf A1 Upper Barrel Without Modification.

T91 Front sight taper pin measurement:

Certified Gunsmith Recommended.

This Front Sight Assembly Requires a Gas Port and Barrel Lock Pin Drilled and Some Other Modifications.

Certified Gunsmith Recommended.

Installation Instruction Download

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic and/or descriptive errors.

For use with T91 rear sights. (Use the original "TALL" sight post that came with Wolf A1 if using AR-15 rear sights)

Tapped Barrel Lock Pin Included.

MIL-SPEC Replacement Part For Wolf A1 Upper, No Barrel Swap.

Only For 18mm Gas Port Journal Wolf A1 Barrels.

Drill bit size: 2.2 mm for gas port, 3.0 mm for Barrel Lock Pin.

T91 Front sight taper pin measurement:

Certified Gunsmith Recommended.

Please come back here to download the installation instructions after the order is placed.

Download Instruction Here

This Front Sight Assembly Requires The Following Tasks To Install:

1. Shop Press To Remove And Re-Install The Sight Base.

2. Drilling The Gas Port And Barrel Lock Pinhole. Press In The Barrel Lock Pin.

3. Fitting and Modification.

Made in Taiwan.

For your reference. Here's one of the gunsmiths who has done the front sight base swap for the Wolf A1 barrel.

https://sterlingarsenal.com

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic, and/or descriptive errors.

Tapped Barrel Lock Pin Included.

This Front Sight Assembly Will Not Fit Wolf A1 Upper Barrel Without Barrel Swap.

For use with T91 rear sights. (Use the original "TALL" sight post that came with Wolf A1 if using AR-15 rear sights)

Only For 0.750" Gas Port Journal AR-15 Barrels.

Drill bit size: 2.2 mm for gas port, 3.0 mm for Barrel Lock Pin.

T91 Front sight taper pin measurement:

This Front Sight Assembly Require Gas Port and Barrel Lock Pin Drilling, Standard AR-15 Barrel Modification, and Fitting Required.

Certified Gunsmith Recommended.

Please come back here to download the installation instructions after the order is placed.

Download Instruction

Options: Standard, Green, or Red Tritium Insert.

Made in Taiwan

For your reference. Here's one of the gunsmiths who has done the front sight base swap for the Wolf A1 barrel.

https://sterlingarsenal.com

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic, and/or descriptive errors.

For T91 / WA1 Front Sight Assembly

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic and/or descriptive errors.

For every 3~5K rounds fired, we recommended swapping out these parts to ensure gas systems function properly.

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic and/or descriptive errors.

2nd GEN. New Improved Hand-Guard Locking System, Tangle Prevented.

Light-weight MIL-STD-1913 Picatinny rail system design for tactical T91 upper build. Machined to mil-spec from 6063-T6 aluminum.

This two-piece lightweight M-LOK handguard eliminates the original bulky plastic style while retaining strength and stability.

The M-LOK design allows additional cooling to the barrel and piston drive for the longevity of the weapon system.

Specifications:

Handguard Material: 6061-T6 anodized aluminum. Left, Right, and Bottom M-LOK Slots.

Piston Block: Works with standard T91, Wolf A1 Piston blocks.

Compatibility: For use on T91, Wolf A1 Upper.

Rail Weight: 10 ounces.

Height: 2.5".

Length: 8.5".

Color: Flat Black.

Made In Taiwan.

*Easy Installation, See the YouTube Video For Installation Instructions.

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic and/or descriptive errors.

2nd GEN. New Improved Hand-Guard Locking System, Tangle Prevented.

Specifications:

Compatibility: For use on T91 Keymod or M-LOK handguards.

Package including one Locking Pin, two Cotter Pins, and two Mounting Screws.

Weight: 2 ounces.

Made In Taiwan.

*Easy Installation, See Our YouTube Video For Installation Instructions.

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic and/or descriptive errors.

Tri-Picatinny Rail Mount design for a Tactical T91 upper build. They are machined from 6063-T6 aluminum.

This is a one-piece add-on tri-rail addition to the folding front sight and flashlight mount.

Specifications:

Material: One Piece 6063-T6 anodized aluminum. With Picatinny Rail.

Function: Provides a secure and standardized platform for mounting optics, lights, lasers, and other accessories.

Application: Folding Front Sight, Flash Light....

Compatibility: For use on T91, Wolf A1 Upper with polymer handguard.

Rail Weight: 5 ounces.

Height: 1.75".

Length: 4.5".

Width: 2.25".

Screw Size: M3.5-0.60 x 12 mm (#6-32 x 1/2"), Flat Socket Cap, the recommended torque is 6.0 inch-pounds (0.68 Nm). Loctite is Recommended.

Color: Flat Black.

Made in Taiwan. Designed for the T91 BB Gun.

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic, and/or descriptive errors.

Quad Picatinny quad rail system designed for BB Gun. This two-piece quad rail handguard provides strength and stability. Designed to allow additional cooling to the barrel and piston drive for the longevity of the weapon system.

New retaining screw and knurled thumb nut. Easy to install and remove, no more struggling with hard-to-install tiny cotter pin.

Specifications:

Handguard Material: Two Pieces of 6061-T6 anodized aluminum.

Piston Block: Works with standard T91, W-A1 Piston blocks.

Compatibility: For use on T91, W-A1 Upper.

Rail Weight: 15 ounces.

Height: 2.5".

Length: 8.5".

Color: Flat Black.

Made In Taiwan.

* Installation, Please See Photos And Other YouTube Videos for Installation Instructions.

** This quad-rail Handguard has been installed and tested on Mil-Spec T91 and W-A1 upper without any issues. Adjustment and minor modifications may be required. It's a little heavier than the original T91 M-LOK/Keymod Handguard.

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic, and/or descriptive errors.

The BiaoTac handguard system is designed for the T91 Rifle. This two-piece handguard system provides strength and stability. Designed to allow additional cooling to the barrel and piston drive for the longevity of the weapon system.

New retaining screw nut. Easy to install and remove, no more struggling with a hard-to-install tiny cotter pin.

Specifications:

Handguard Material: 6061-T6 anodized aluminum.

Compatibility: For use on T91, Wolf-A1 Upper.

Rail Weight: 15 ounces.

Height: 2.5".

Length: 11.0".

Color: Flat Black.

Made In Taiwan.

Note: The Barrel Retaining Ring may not be compatible with the US version T91 and Wolf-A1 Upper, especially not compatible with heavy barrel profiles at the moment.

* Installation, Please See Photos And Other YouTube Video For Installation Instructions.

** This Handguard has been installed and tested on Mil-Spec T91 and Wolf-A1 upper without issues. Adjustment and minor modifications may be required.

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic, and/or descriptive errors.

Introducing a complete handguard system specially designed for the T91 Battle Rifle. This two-piece handguard has been engineered to provide exceptional strength and stability to the rifle. Additionally, it allows for better cooling of the barrel and piston drive system, thus enhancing the longevity of the weapon system. With its new retaining screw nut, the installation and removal process has been made easy, eliminating the struggle of dealing with hard-to-install tiny cotter pins.

Specifications:

Handguard Material: 6061-T6 anodized aluminum.

Compatibility: For use on T91, Wolf-A1 Upper.

Rail Weight: 15 ounces.

Height: 2.5 inches.

Length: 9 inches.

Color: Flat Black.

Made In Taiwan.

* Installation, Please See Photos And Other YouTube Video For Installation Instructions.

** This Handguard has been installed and tested on Mil-Spec T91 and Wolf-A1 upper without issues. Adjustment and minor modifications may be required.

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic, and/or descriptive errors.

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic, and/or descriptive errors.

Come With T91 Standard Front Sight Post (SKU#T91FSPSTD01)

You must use the Standard T91 Front Sight Post included in the package, or you will have difficulty zeroing it.

Machined From 7075-T6 Aluminum, Hard Coat Black Anodized

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic, and/or descriptive errors.

Phosphate-coated one-piece lightweight bolt carrier, for use with T91 / Wolf A1 or other piston system rifle.

A limited quantity of T91 piston bolt carrier group.

This bolt carrier group comes with a firing pin, cam pin, 5.56 bolt, and cotter pin.

Material: Bolt Carrier: 8620, Bolt: SKD61, phosphate coated, MPI.

Weight: 9.6 oz vs 12 oz (standard)

As with any Bolt Carrier Group, always check your headspace when matting a new bolt and barrel.

Made in the USA

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic, and/or descriptive errors.

5.56 NATO. Designed for use with T91 / Wolf A1 piston system upper.

*** Lead Time 5 to 7 days *** Signature Required on Delivery

SPECS:

• The barrel and extension are manganese phosphate finish per MIL-DTL-16232G, Type M, Class I.
• Bore and chamber chrome-plated per ASM-2406L
• Weight: 32 oz.
• Material: 41V50
• 1/2x28" muzzle threading, button rifled, air gauged, and stress relieved.
• Standard feed ramp.
• T91 MIL-SPEC Front Sight Base Installed and Pinned, Gas Port Drilled.

Made In USA

Certified Gunsmith Recommended. Please check headspace before loading live ammo.

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic, and/or descriptive errors.

T91 14.5 inch heavy profile chrome lined barrel - 5.56 NATO. Compatible for use with T91 / W-A1 piston system upper.

*** Lead Time 5 to 7 days *** Signature Required on Delivery

SPECS:

• The barrel and extension are manganese phosphate finish per MIL-DTL-16232G, Type M, Class I.
• Bore and chamber chrome-plated per ASM-2406L
• Weight: 32 oz.
• Material: 41V50
• 1/2x28" muzzle threading, button rifled, air gauged, and stress relieved.
• Standard or M4 feed ramp.
• T91 MIL-SPEC Front Sight Base Pinned and Installed, Gas Port Drilled.

Made In USA

Certified Gunsmith Recommended. Please check headspace before loading live ammo.

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic, and/or descriptive errors.

3rd GEN. New Thumb Nut Hand-Guard Locking System, Easy Mount / Dismount.

Specifications:

Compatibility: For use on T91 Polymer, Keymod, or M-LOK handguards.

Package including one Hex Screw Locking Pin (55 mm), Lock Washer, and Thumb Nut.

Weight: 2 ounces.

** May Require a 3mm Hex Tool For Assembly, Hand-Tight Only. DO NOT OVER-TIGHTEN THE THUMB NUT.

Made In USA.

*** Easy Handguard Installation, See Our YouTube Video For Installation Instructions. (For Reference Only)

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic, and/or descriptive errors.

Features:

• Steel Ambi Latch
• Compatible with Both T91 And AR-15 platform
• 6061 T6 aluminum forging

Made in Taiwan

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic, and/or descriptive errors.

Machined From 7075-T6 Forgings, Hard Coat Anodized Aluminum Handle And Parkerized Steel Sight Parts, Matte Black.

Come With Standard T91 Front Sight Post, This Rear Sight Will Not Work With Wolf A1 "Tall Front Sight Post". Fits T91, Wolf A1 Upper With Picatinny Rail, Windage Adjustment, A2 Aperture.

Come With T91 Standard Front Sight Post (SKU#T91FSPSTD01)

Installation Instruction:

Hand Tighten Only May Strip If Over-Tighten. Loctite-242 or better Recommended.

Options:

1. Standard

2. Tritium insert night sight.

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic and/or descriptive errors.

T91 Bolt Head Assembly - 5.56/ .223, designed for use with T91 / Wolf A1 piston system rifle.

MIL-SPEC phosphate finish for long-term durability.

Weight: 5 oz.

Material: Bolt Carrier: 8620, Bolt: SKD61

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic and/or descriptive errors.

• Taper Pin x 2

T91 Front sight taper pin measurement:

Certified Gunsmith Recommended.

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic, and/or descriptive errors.

High Quality and Precision Made.
* Hard Steel Material with Precision Machined.
* 4-Prong and 5-Prong for T91/AR15 Sights.
* Grip Texture
* 1015 - 1020 Carbon Steel, Black oxide coating for corrosion protection.

Made in Taiwan

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic and/or descriptive errors.

For T91 / WA1 Piston System.

Made in Taiwan

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic, and/or descriptive errors.

Come With T91 Standard Front Sight Post (SKU#T91FSPSTD01)

Due to the nature of the Picatinny spring locking design, there will be some movement after installation of this rear sight.

Must Use With Standard T91 Front Sight Post, This Rear Sight Will Not Work With Wolf A1 Tall Front Sight Post.

Machined From 7075-T6 Forgings, Hard Coat Anodized Aluminum

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic and/or descriptive errors.

Original T91 / WA1 Handguard Set With Aluminum Heat Shield.

Leaf Sight Mounting Screw Size: 8-36 x 3/8"

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic and/or descriptive errors.

For use on the T91 / WA1 Rifle To Secure The Barrel, Torque: 35-45 ft-lb.

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic and/or descriptive errors.

Parts including:

Chromed 5.56 Firing Pin.

1x Extractor Pin, 1x Extractor, 1x Extractor Spring Assembly, 1x Ejector Pin, 1x Ejector, 1x Ejector Helical Spring, 1x Firing Pin Retaining Pin, 1x Cam Pin, 1x O-Ring (Mil-Spec).

For every 3~5K rounds fired, we recommended swapping out these parts to ensure BCG systems function properly.

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic, and/or descriptive errors.

Material: 4140 Alloy Steel, HRA 65-68

Direct Replacement For Wolf A1 Upper Flash Hider.

Recommended torque is 15-20 ft-lbs, Certified Gunsmith Recommended.

** This item can not ship to California, Massachusetts, New York, and New Jersey

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic and/or descriptive errors.

For the BiaoTac handguard system.

Specifications:

Handguard Material: Steel.

Compatibility: For use on BiaoTac Handguard.

Weight: 1 ounces.

Height: 0.25 inches.

Length: 2 inches.

Color: Black.

Made In Taiwan.

* Installation, Please See Photos And Other YouTube Video For Installation Instructions.

** This Handguard has been installed and tested on Mil-Spec T91 and W-A1 upper without issues. Adjustment and minor modifications may be required.

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic, and/or descriptive errors.

The BiaoTac handguard system is designed for the T91 Rifle. This two-piece handguard system provides strength and stability. Designed to allow additional cooling to the barrel and piston drive for the longevity of the weapon system.

New retaining screw nut. Easy to install and remove, no more struggling with a hard-to-install tiny cotter pin.

Specifications:

Handguard Material: 6061-T6 anodized aluminum.

Compatibility: For use on T91, Wolf-A1 Upper.

Rail Weight: 18 ounces.

Height: 2.5".

Length: 13.5".

Color: Flat Black.

Made In Taiwan.

* Installation, Please See Photos And Other YouTube Video For Installation Instructions.

**This Handguard has been installed and tested on Mil-Spec T91 and Wolf-A1 upper receivers without issue. **Adjustments and minor modifications may be required. **

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic, and/or descriptive errors.

The BiaoTac handguard system is designed for the Wolf-A1 Rifle. This two-piece handguard system provides strength and stability. Designed to allow additional cooling to the barrel and piston drive for the longevity of the weapon system.

New retaining screw nut. Easy to install and remove, no more struggling with a hard-to-install tiny cotter pin.

Specifications:

Handguard Material: 6061-T6 anodized aluminum.

Compatibility: For use on Wolf-A1 Upper Only.

Rail Weight: 15 ounces.

Height: 2.5".

Length: 11.0".

Color: Flat Black.

Made In Taiwan.

Note: The Barrel Retaining Ring may not be compatible with the US version T91 and WA1 Upper, especially not compatible with heavy barrel profiles at the moment.

* Installation, Please See Photos And Other YouTube Video For Installation Instructions.

** This Handguard has been installed and tested on Mil-Spec Wolf-A1 upper without issues. Adjustment and minor modifications may be required.

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic, and/or descriptive errors.

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic, and/or descriptive errors.

BiaoTac handguard system designed for WA1 Rifle Only. This two-piece handguard system provides strength and stability. Designed to allow additional cooling to the barrel and piston drive for the longevity of the weapon system.

New retaining screw nut. Easy to install and remove, no more struggling with a hard-to-install tiny cotter pin.

Specifications:

Handguard Material: 6061-T6 anodized aluminum.

Compatibility: For use on W-A1 Upper ONLY.

Rail Weight: 18 ounces.

Height: 2.5".

Length: 13.5".

Color: Flat Black.

Made In Taiwan.

* Installation, Please See Photos And Other YouTube Video For Installation Instructions.

**This Handguard has been installed and tested on the Wolf A1 upper without issue. ** Adjustment and minor modifications may be required.

NOTE: Prices, specifications, and availability are subject to change without notice. We reserve the right to correct typographic, photographic, and/or descriptive errors.