Components

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...

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...

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...

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...

This bolt carrier is manufactured from case hardened 8620 steel with properly staked 4130 steel gas key. The accompanying bolt is Carpenter 158, shot peened, HPT and MPI tested, and finished in a self-lubricating polished black nitride. Bolt lugs are CNC...

These drop-in, mil-spec polymer handguards for the AR15/M4 are perfect for that USGI look. These handguards fit between the original Delta Ring barrel nut and the round handguard cap.Features:Make: AR-15/M4, M16Color: BlackLength: 6.5”...

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...

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...

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...

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...

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 Keymod04-301: AR-15 Lower Parts Kit Complete Luth-AR OEM04-306: AR-15 Ambidextrous...

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...