Components

This ACME exclusive Made in USA handguard brings all the flexibility of KeyMod®, for those who prefer the lighter, sleeker look of a free floating handguard. This handguard is made of durable aircraft grade aluminum alloy, and finished with a long...

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...

This ACME exclusive Made in USA handguard brings all the flexibility of M-LOK®, for those who prefer the lighter, sleeker look of a free floating handguard with the convenience of drop-in. This handguard is made of durable aircraft grade aluminum...

Get a high quality Bolt Carrier Group for your AR with this superb .308/7.62 Nickel Boron BCG from ACME Machine ! This .308/7.62 Nickel Boron BCG with Forward Assist features an 8620 Tool Steel Carrier and 9310 Carpenter Steel Bolt, with a properly...

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...

Barrel: 16" 4150 Black Nitride M4 ContourTwist: 1:7Caliber: 5.56 Chamber15" Free Float HandguardACME AR-15 Upper Receiver *Picture might show optional accessories

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...

This ACME exclusive Made in USA handguard brings all the flexibility of M-LOK®, for those who prefer the lighter, sleeker look of a free floating handguard with the convenience of drop-in. This handguard is made of durable aircraft grade aluminum...

Set of 10 KeyMod replacement screws & nuts. Wrench included

Replace your standard AK-47 wood handguard with a precision-machined, hard anodized aluminum handguard. This rail is built from CNC machined aircraft grade aluminum alloy for strength and stability to provide a solid platform for enhanced optics.The rail...

This ACME exclusive Made in USA handguard brings all the flexibility of M-LOK®, for those who prefer the lighter, sleeker look of a free floating handguard. This handguard is made of durable aircraft grade aluminum alloy, and finished with a long...

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...

This ACME exclusive Made in USA handguard brings all the flexibility of M-LOK®, for those who prefer the lighter, sleeker look of a free floating handguard. This handguard is made of durable aircraft grade aluminum alloy, and finished with a long...

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

Build Kit Includes:01-501: 16" 5.56 M4 Carbine Contour Barrel Chambered 1:8 Twist02-201: 5.56 Enhanced Bolt Carrier Group AR-15 Nitride03-110: 15" Super Slim Gen II Keymod05-774: AR-15 Upper Receiver Assembled - Anodized Black04-301: AR-15 Lower Parts...

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...