Parts & Kits

Pistol Buffer Tube is a highly functional addition to your AR-15, LR-308 pistol build. This buffer tube is machined to strict standards to provide an excellent fit and reliable function. The buffer tube is machined from 7075 aluminum and given a hard...

Complete Lower Parts Kit includes, Bolt Catch, Bolt Catch Plunger, Bolt Catch Roll Pin, Bolt Catch Spring, Buffer Retainer, Buffer Retainer Spring, Disconnect, Disconnect Spring, Traditional Hammer (Black in Color), Hammer Pin, Hammer Spring, Magazine...

Angled Sling Mount - Sports Ambidextrous Dual Round Loop Single-Point Sling Adapter AR15 End Plate (AR Steel Ambidextrous End Plate with Double Sling Loop) is a dual loop single point sling adapter for 5.56 /.223 rifles. Angled sling adapter is easy to...

ACME is now offering replacement components for the AR-15 that are made to strict military specifications. These high quality components will provide excellent fit and reliable function in your AR series platforms. These parts are perfect for...

Features and Specifications:Mil-spec Diameter Receiver Extension Tube for AR-15 RiflesExtension Tube CNC Machined from 6061-T6 Aircraft Grade Aluminum with Precisely Rolled Threads for Durable Thread Engagement with Lower ReceiverFinished in Matte Black...

The Bravo Company USA BCMGUNFIGHTER Ambidextrous Charging Handle Mod3x3 has been designed over a decade of feedback from real world combat operations. BCM makes continual design refinements and structural improvements to the charging handle addressing...

Features and Specifications:Mil-spec Diameter Receiver Extension Tube for LR-308 RiflesExtension Tube CNC Machined from 6061-T6 Aircraft Grade Aluminum with Precisely Rolled Threads for Durable Thread Engagement with Lower ReceiverFinished in Matte Black...

Carbine Length Gas Tube is a high quality solution for your next AR build. This stainless steel gas tube provides clean reliable function in your modern sporting rifle. Next time the need arises choose ACME or your assembly parts.Specifications and...

Mid-Length Gas Tube is a high quality solution for your next AR build. This stainless steel gas tube provides clean reliable function in your modern sporting rifle. Next time the need arises choose ACME for your assembly parts.Specifications and...

Set of 10 KeyMod replacement screws & nuts. Wrench included

Replacement component for the AR-15 that are made to strict military specifications. These high quality components will provide excellent fit and reliable function in your AR series platforms. These parts are perfect for upgrading existing components or...

Set of 10 M-LOK replacement screws & nuts. Wrench included

Pistol Length Gas Tube is a high quality solution for your next AR build. This stainless steel gas tube provides clean reliable function in your modern sporting rifle. Next time the need arises choose ACME for your assembly parts.Specifications and...

This is our standard AR-15 Micro Gas Block. Designed with the minimum profile to fit under nearly any quad rail system, it snugly fits standard .750 diameter barrels. Features: Mil-Spec dimensions .750 diameter Hardened Steel construction...

ACME is now offering replacement components for the AR-15 that are made to strict military specifications. These high quality components will provide excellent fit and reliable function in your AR series platforms. These parts are perfect for...

Features and Specifications:Mil-spec Diameter Receiver Extension Tube for AR-15 RiflesExtension Tube CNC Machined from 6061-T6 Aircraft Grade Aluminum with Precisely Rolled Threads for Durable Thread Engagement with Lower ReceiverFinished in Matte Black...

Gas Block Spring Pin 5/64 X 5/16 For use with low profile gas blocks and A2 style Front Sight Base sight towers.

ACME is now offering replacement components for the that are made to strict military specifications. These high quality components will provide excellent fit and reliable function in your AR series platforms. These parts are perfect for upgrading...

Replacement component for the AR-308 that are made to strict military specifications. These high quality components will provide excellent fit and reliable function in your AR series platforms. These parts are perfect for upgrading existing components or...

Easy, Fast Separation Of Upper & Lower Receiver HalvesPivot and takedown pins with easy-to-grasp, oversized heads make separating upper and lower receiver halves fast and easy. Simply grasp the large, button-style head and disengage the pin—no...