NcStar TARW Armorer's Barrel Wrench - Black Steel Tool for AR15/M4/M16 Maintenance
$21.99
$30.99
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- Firearm Group:
- AR Platform
- Bade ength:
- 12.7"
- OAL:
- Various
- Closed Length:
- 12.7"
- Handle Description:
- AR-15/M4/M16
- Edge Type:
- 20.2 oz
- Weight:
- 20.20 oz
- Sharpener Type:
- 1
The NCStar TARW Armorer's Barrel Wrench is a multi-function AR-platform maintenance tool built for shooters who service their own rifles. If you're upgrading barrels, adjusting gas tubes, or maintaining castle nuts on AR-15, M4, or M16 platforms, this black steel combo wrench consolidates several jobs into one compact package—no need to hunt through your toolbox for separate wrenches every time you crack open your upper receiver.
Built from durable steel construction and weighing just over a pound, this wrench handles both older single-pin and newer M4 collapsible stock configurations. The tool includes wrench surfaces for GI barrel nuts (A1 and A2 flash suppressor designs), castle nut adjustments, and an integrated 1/2" drive ratchet socket—letting you torque fasteners to spec without swapping tools. A flat-blade screwdriver tip rounds out the multi-use design.
At 12.7 inches long, it's compact enough to keep in a range bag or cleaning kit without taking up serious space. The combination approach means fewer separate tools to lose, organize, or buy separately. Whether you're a dedicated tinkerer running a precision build or a shooter who prefers to handle routine maintenance at home, this wrench is a straightforward addition to your AR gunsmithing setup.
Key Features
- Multi-function combo tool for AR-15, M4, and M16 platform maintenance
- Barrel nut wrench compatible with GI A1 and A2 flash suppressors
- Castle nut wrench for both single-pin and M4 collapsible stock configurations
- Integrated 1/2" drive ratchet socket for controlled torque application
- Flat-blade screwdriver tip for fastener work
- Black steel construction for durability and corrosion resistance
- Compact 12.7" length fits easily in tool bags and range kits
Specifications
| Brand | NCStar |
| Product | TARW Armorer's Barrel Wrench |
| Material | Black Steel |
| Length | 12.7 inches |
| Weight | 20.2 oz |
| Ratchet Drive | 1/2" Drive |
| Compatibility | AR-15, M4, M16 platforms |
| Patent | US Design Pat. # D598723 |
Frequently Asked Questions
What AR-15 barrel nut types does this wrench fit?
The TARW wrench includes surfaces for GI-spec barrel nuts in both A1 and A2 flash suppressor configurations, covering the most common older AR platforms.
Will this work on M4 collapsible stocks?
Yes. The tool includes castle nut wrench surfaces for both single-pin (older) and M4 collapsible stock designs, so you can adjust or remove castle nuts across multiple AR variants.
What else can I use this tool for besides barrel work?
In addition to barrel and castle nut work, the wrench features a 1/2" drive ratchet socket for controlled fastener torque and an integral flat-blade screwdriver for general gunsmithing tasks.
Is this tool suitable for a range bag?
Yes. At 12.7 inches long and weighing about 20 ounces, it's compact and light enough to keep in a range bag or field cleaning kit without adding significant bulk.
