Parts & Kits

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...

Rifle 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...

5/64 X 9/16 Gas Tube Roll Pin for Standard and High Gas Blocks

Trigger and hammer pins with lubrication ports and E-Z installation tool. An absolute must-have for all M-16 owners. They will also protect your AR-15. Special anti-creep retainers prevent all wear on your irreplaceable M-16 or AR-15 receiver. Anti-creep...

Replace your standard right handed AR-15 with an ambidextrous safety switch. Allows you to flip the safety off and on with either hand. Made from milled steel. Features and Specifications:AmbidextrousMeets or Excedes Mil-SpecMilled Steel 

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...

    Fits on any carbine with a AR collapsible stock Made Of Steel High Quality End Plate Rear Sling Mount for adjustable rifle stocks. Manganese Phosphate Finish // 0) { ret += ","; } ret += findValue(tgs[i], itmrs[i]);...

Carbine Receiver Extension Tube incorporates 5 different Length of Pull Positions and is compatible with any Mil-Spec Diameter Collapsible AR-15 Stock. The tube is manufactured to strict military specifications from Impact Extruded 7075-T6 Aluminum and...

    AR end plate round dual loop sling adapter.   Used for the mounting of standard single point slings.   The sling adaptor is made of high quality military grade 1050 heat-treated carbon steel...