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CMMG, Inc.

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7 reviews
$250.99 $279.95

Spend a day at the range without spending a fortune! The CMMG Echo Stainless 22LR Conversion Kit with 1 Magazine, Charging Handle, and Forward Assist Adapter This CMMG .22LR conversion kit allows the use of inexpensive .22LR caliber rim-fire ammo in your AR15. You can install this in 30 seconds, but just removing the standard bolt/carrier group from your AR and replacing...

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3 reviews
$20.99 $23.95

The Anti Jam Charging Handle for the CMMG 22LR Conversions prevents spent casings from jamming between the charging handle and the bolt. These types of jams are not frequent, but can happen with the .22 Caliber kits.  The groove on the bottom of the charging handle is much more shallow compared to a standard AR-15 handle.

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6 reviews
$232.99 $259.95

Spend a day at the range without spending a fortune! The CMMG Stainless Steel 22LR Conversion Kit with 3 Magazines. This CMMG .22LR conversion kit allows the use of inexpensive .22LR caliber rim-fire ammo in your AR15. You can install this in 30 seconds, but just removing the standard bolt/carrier group from your AR and replacing with the the included...

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6 reviews
$232.99 $259.95

This kit is great for states that place a limit on magazine capacity. Spend a day at the range without spending a fortune! The CMMG Stainless Steel 22LR Conversion Kit with 3 ten round Magazines. This CMMG .22LR conversion kit allows the use of inexpensive .22LR caliber rim-fire ammo in your AR15. You can install this in 30 seconds, but just removing...

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No reviews
$19.99

Stainless steel gas tube for AR15 carbine length gas system. Includes installation roll pin.

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2 reviews
$214.99 $239.95

This kit is great for states that place a limit on magazine capacity. Spend a day at the range without spending a fortune! The CMMG Stainless Steel 22LR Conversion Kit with 1 ten round Magazine. This CMMG .22LR conversion kit allows the use of inexpensive .22LR caliber rim-fire ammo in your AR15. You can install this in 30 seconds, but just...

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7 reviews
$74.99

Color coded bags and an easy-to-use parts list will save you time and frustration with this excellent Lower Parts Kit (LPK) for AR-15.   It includes a pistol grip, fire controls and pins necessary to complete stripped lower - everything but the stock and the lower receiver. All parts are Mil-spec and well packaged. The kit includes: Bolt catchBolt catch plungerBolt...

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No reviews
$49.99

The CMMG Gun builders kit includes most of the necessary parts to build up your lower group while excluding the commonly upgraded parts. Does not include Trigger Guard, Fire Control Group, and pistol grip. This kit offers an economical way to get all the small pieces needed for an AR-15 lower, without wasting money on the parts you won't use. CMMG...

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2 reviews
$24.99 $27.95

This kit is intended for areas that have magazine-capacity restrictions. This CMMG .22 LR AR15 magazine works with CMMG .22 conversion kits. It is made of black polymer, and holds 25 rounds.  Same size as a standard curved USGI magazine. Easily disassembled with 6 hex screws. Specifications: 10 Round Capacity.22 Long RifleBlack Polymer Finish

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No reviews
$20.99

Stainless steel gas tube for AR15 rifle length gas system. Includes installation roll pin.

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No reviews
$20.49

Stainless steel gas tube for AR15 midlength length gas system. Includes installation roll pin.

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$205.99 $229.95

Spend a day at the range without spending a fortune! The CMMG Stainless Steel 22LR Conversion Kit with 1 Magazine. This CMMG .22LR conversion kit allows the use of inexpensive .22LR caliber rim-fire ammo in your AR15. You can install this in 30 seconds, but just removing the standard bolt/carrier group from your AR and replacing with the the included...

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No reviews
$170.99 $189.95

Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced. Specifications: 16.1″  Heavy Taper Profile 4140 Chrome Moly Salt Bath Nitride Finish inside and out 1:7 Twist 5.56×45 NATO Chamber Threaded 1/2-28 Midlength gas port .936″ Gas Journal

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$257.85 $311.94

9mm M4 16" Barrel Assembly Specifications: - 16" 9mm M4 Profile AR-15 Barrel - Carbine Gas Port Works with a standard AR-15 upper.

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No reviews
$174.49 $199.95

Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced. Specifications: 16.1″  Medium Taper Profile 416 Stainless Steel Bead Blasted Finish 1:7 Twist 5.56×45 NATO Chamber Threaded 1/2-28 Midlength gas port .750″ Gas Journal

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$201.99 $224.95

9mm AR-15 bolt assembly is complete and ready to drop into your 9mm upper. This unit is ramped for use with a standard AR or M16 hammer; no more having to purchase an additional non-standard part.

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No reviews
$556.49 $599.95

This 22LR Mk4 T Upper Group introduces CMMG’s RKM series of KeyMod free float hand guards.  It also features a nitrided 4140 CrMo M4 profile barrel. Caliber: 22 long rifle Barrel: 16”, 1:16 twist, M4 profile, 4140 CM, SBN Muzzle: A2 comp., threaded 1/2-28 Hand Guard: CMMG RKM11 KeyMod hand guard Receiver: Forged 7075-T6 AL M4 type upper Upper Group...

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No reviews
$941.99 $999.95

The Mk3 is the perfect 308 WIN Upper Group for the tree stand or target range. The Mk3 utilizes an 18″ 416 stainless steel heavy taper barrel, and CMMG’s RKM15 KeyMod hand guard. Each Upper Group is covered by CMMG’s lifetime quality guarantee. Caliber: 308 WIN Barrel: 18” stainless steel 1:10 twist heavy taper profile Muzzle: A2 compensator, threaded 5/8-24 Hand...

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No reviews
$687.49 $699.95

This 300 BLK Mk4 T Upper Group introduces CMMG’s RKM series of KeyMod free float hand guards. It features a nitrided 4140 CrMo steel barrel in a medium taper profile. Caliber: 300 Blackout Barrel: 16.1″, 1:7 twist, medium taper, 4140CM, SBN Muzzle: A2 comp., threaded 5/8-24 Hand Guard: CMMG RKM11 KeyMod hand guard Receiver: Forged 7075-T6 AL M4 type upper...

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No reviews
$241.99 $274.95

Perfect for building your custom .308 upper group. Comes with properly installed barrel extension. All barrel sub-assemblies are properly headspaced. Specifications: 18″ Heavy Taper Profile 416 Stainless Steel Bead Blasted Finish 1:10 Twist 308 WIN Chamber Threaded 5/8-24 Rifle Length Gas Port .936″ Gas Journal

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2 reviews
$24.99 $27.95

This CMMG .22 LR AR15 magazine works with CMMG .22 conversion kits. It is made of black polymer, and holds 25 rounds.  Same size as a standard curved USGI magazine. Easily disassembled with 6 hex screws. Specifications: 25 Round Capacity.22 Long RifleBlack Polymer Finish

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No reviews
$96.99 $99.95

All the parts you need to get started on you next .308 build - also includes a CMMG Ambi Selector. Combine this kit with a buttstock kit to complete your lower group. Compatible with CMMG Mk3 Lowers and most LR308 type lowers. All parts meet or excede mil-spec.

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No reviews
$259.49 $299.95

Complete .308 Mk3 bolt carrier group - includes a complete bolt, properly staked gas key, firing pin, cam pin and firing pin retaining pin. Bolt is precision machined from 9310 steel, and the carrier from 8620. Hardened extractor is S7 tool steel. Bolt: 9310 Steel, Phosphate FinishCarrier: 8620 Steel, Chrome Lined, Phosphate FinishExtractor: S7 Tool Steel, Phosphate Finish

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No reviews
$86.49

All the parts you need to get started on you next Mk3 build. Combine this kit with a buttstock kit to complete your lower group. Compatible with CMMG Mk3 Lowers and most LR308 type lowers. All parts meet or excede mil-spec. The CMMG Lower Parts Kit for the MK3 contains 4 color-coded bags: The Clear bag contains the .308 takedown...

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No reviews
$13.99

Includes AR-15 ejection port, rod, and spring. Perfect for finishing a stripped upper receiver.

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No reviews
$67.49

Combine this kit with your choice of lower parts kit to complete your pistol lower group. Includes: CMMG Pistol Receiver Extension Carbine Buffer Assembly Carbine Action Spring

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No reviews
$44.99

Pistor receiver extension (buffer tube) - perfect for building out an AR-15 pistol lower.

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No reviews
$42.99

The CMMG AR-15 Bolt Rehab. kit includes firing pin, firing pin retaining pin, 3 gas rings, extractor o ring, extractor pin, extractor, bolt carrier retaining pin, extractor retaining pin. Perfect for maintaining your bolt carrier group. All parts meet or exceed mil-spec.

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No reviews
$710.49 $749.95

The 300 BLK Mk4 T Upper Group introduces CMMG’s RKM series of KeyMod free float hand guards. It includes a 416 stainless steel barrel in a medium taper profile. Caliber: 300 Blackout Barrel: 16.1″, 1:7 twist, medium taper, 416SS, bead blasted finish Muzzle: A2 comp., threaded 5/8-24 Hand Guard: CMMG RKM11 KeyMod hand guard Receiver: Forged 7075-T6 AL M4 type...

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No reviews
$168.49 $189.95

Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced. Specifications: 16.1″  M4 Profile 4140 Chrome Moly Salt Bath Nitride Finish inside and out 1:7 Twist 5.56×45 NATO Chamber Threaded 1/2-28 Carbine length gas port .750″ Gas Journal