SKU: BCTBT-AR15AW
UPC: 850016746474
The Breakthrough Clean Technologies AR-15 Armorer's Wrench is a multi-function tool built for AR-15 and M4 platform work, from a first build to routine maintenance. It handles receiver extension and castle nut installation and removal, threads on muzzle devices, and torques both Mil-Spec and Pin-Style barrel nuts. Whether you're assembling a lower from parts or swapping a flash hider, this wrench covers the core jobs without forcing you to keep a drawer full of single-purpose tools. It's a sensible buy for shooters who do their own gunsmithing and want one reliable tool that earns its place on the bench.
The body is titanium-plated stainless steel, a finish that resists wear and corrosion through repeated torque cycles. It functions with both Mil-Spec and Pin-Style barrel nuts, so it stays useful across the wide range of AR-15 uppers in the field. A ½-inch socket cutout lets you mate the wrench to a torque wrench when you need to hit a published spec rather than guess by feel. The tool includes a standard size muzzle device wrench section for crush washers and flash hider work, plus a bonus butt stock screwdriver for stock hardware. Pair it with a stable work surface like an upper vise block and a bench block to keep parts secure while you apply force.
Reach for this wrench when you're installing a buffer tube and castle nut, staking a muzzle device, or breaking down an upper for barrel work. It belongs in any AR-15 build kit and travels well enough for field repairs at the range. Combine it with the right armorer tools and a quality cleaning regimen from our cleaning equipment selection to keep your rifle running. For shooters setting up a full bench, it works alongside carbon scrapers, pivot locks, and the other Breakthrough Clean Technologies AR-15 tools we stock.
It's built for AR-15 and M4 platforms. The tool installs and removes receiver extensions and castle nuts, threads muzzle devices, and tightens barrel nuts. It functions with both Mil-Spec and Pin-Style barrel nuts, which covers the large majority of AR-15 uppers you'll encounter.
Yes. The wrench includes a ½-inch socket cutout that mates to a ½-inch drive torque wrench, so you can tighten barrel nuts and other fasteners to a published spec rather than estimating by hand.
The wrench is titanium-plated stainless steel. That plating adds wear and corrosion resistance for a tool that sees repeated torque cycles and contact with abrasive barrel nut and muzzle device threads.
Beyond the main wrench head, it includes a standard size muzzle device wrench section for crush washers and flash hiders, plus a bonus butt stock screwdriver for stock and grip hardware.
Yes. The included standard size muzzle device wrench section lets you install and remove flash hiders, compensators, and similar devices, making it a single tool for both barrel nut and muzzle work.
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