AR-15 Upper Parts

CMMG AR 15 Front Sight Base “F” marked front sight base assembly for .750″ gas journals. Does not include front sight post or sling loop. This item requires specific equipment to install and should be completed by a licensed gunsmith...

CMMG AR 15 Mil-Spec Charging Handle The CMMG AR 15 Mil-Spec Charging Handles are manufactured here in the US from 7075-T6 aluminum and are type three hard coat anodized.  7075-T6 Aluminum Type 3 hard Coat Anodized Mil Spec...

CMMG AR 15/.308 Forward Assist Kit The CMMG AR 15/.308 Forward Assist Kit is the ideal replacement for those who want reliability above flash. This part is built to last, it is made of steel and boasts a black finish to compliment any rifle...

CMMG AR 15 Bolt Rehab Parts Kit The CMMG AR 15 Bolt Rehab Parts Kit is a comprehensive solution to ensure your AR-15 always operates at peak performance. This mil-spec bolt rehab kit is compatible with various calibers, including 5.56mm, .223, and 300...

CMMG .750 Low Profile Gas Block Assembly The CMMG .750 Low Profile Gas Block Assembly is manufactured from 4141 Chrome Moly Steel with parkerized finish. These .750 lower profile gas blocks include the two set screws but do not include a roll pin...

CMMG 16.1" 300 AAC Blackout AR 15 Barrel - Stainless The CMMG 16.1" 300 AAC Blackout AR 15 Barrel is perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly head spaced...

CMMG 5" Barrel and BCG Kit 9mm The CMMG 5" Barrel and BCG Kit in 9mm is an excellent choice for building a Pistol Caliber Carbine with CMMG's Patent Pending Radial Delayed Blowback System. This kit is designed to work exclusively with mil-spec AR-15...

CMMG 8" Barrel and BCG Kit 5.7x28mm The CMMG 8" Barrel and BCG Kit 5.7x28mm is a high-quality kit with many features that make it a popular choice for gun enthusiasts. The kit includes an 8" 5.7x28mm barrel and a 5.7x28mm bolt carrier group, both of...

CMMG Stainless Steel Carbine Length Gas Tube The CMMG Stainless Steel Carbine Length Gas Tube is an indispensable component for AR enthusiasts, whether constructing a new firearm or replacing parts in an existing one. Manufactured from premium stainless...

CMMG 16.1" 300 AAC Blackout AR 15 Barrel The CMMG 16.1" 300 AAC Blackout AR 15 Barrel is perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly head spaced...

CMMG 6.5 Grendel AR 15 Bolt Carrier Group This BCG is designed to operate with either 6.5 Grendel or Hornady's new 6mm ARC. Will not work with CMMG MkW platform. It is designed for standard AR variants. Features: CALIBER: 6.5 Grendel/6mm ARC

CMMG 8" 300 AAC Blackout AR 15 Barrel Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced. ALL NFA RULES APPLY Features: 8.0" Medium Taper...

CMMG Stainless Steel Mid Length Gas Tube The CMMG Stainless Steel Mid Length Gas Tube is an indispensable component for AR enthusiasts, whether constructing a new firearm or replacing parts in an existing one. Manufactured from premium stainless steel,...

CMMG ZEROED AR-15  .750 Adjustable Gas Block - Nitride If you're looking to shoot suppressed or just fine tune your AR to your preferred ammo, the CMMG ZEROED Adjustable Gas Block gives you the freedom to dial in the gas system exactly to your...