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CMMG | Banshee, Dissent, Mk47 & Other AR Parts — 498 products / 1,054 models

Whether you're a seasoned shooter or a firearm enthusiast, our selection of CMMG gun parts is designed to take your shooting experience to the next level. Elevate your shooting game with CMMG barrels, bolts, triggers, and other precision components designed to optimize accuracy, consistency, and overall firearm performance. From customizing your AR-style rifle to enhancing your pistol, CMMG develops high-quality gun parts to suit your specific needs. image

What Does CMMG Stand For?

CMMG stands for Central Missouri Machine Guns.

Is CMMG Good Quality?

OpticsPlanet is dedicated to providing firearm enthusiasts with only high-quality gun parts, and CMMG is an established, trustworthy brand that has released reliable and durable products for years. Overall, CMMG gun parts meet but usually exceed expectations for their price point. Check out all of our CMMG Reviews to see what verified customers are saying about CMMG products.

What Is the Difference Between CMMG Banshee and Dissent?

The biggest difference between the CMMG Banshee and CMMG Dissent is that the Banshee has a buffer tube and spring like typical ARs, but the Dissent is a bufferless AR that doesn’t use a buffer tube system, providing users with enhanced stock options. Also, Banshee firearms are mostly short-barreled rifles (SBRs) and pistols and have more caliber options than Dissent.

Buy CMMG Gun Parts & Accessories at OpticsPlanet

Shop online with us to save big on premium CMMG firearm parts and accessories to build or customize your weapon exactly how you want. From CMMG uppers to conversion kits, we have great deals on fan-favorite gun parts. What’s more, OpticsPlanet has thousands of daily deals and offers Free Shipping on most orders over $49. Upgrade your firearm today for less!

Popular Categories

Image of Gun Parts category Gun Parts
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Image of AR 15 Parts category AR 15 Parts
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Image of Bolt Carrier Groups category Bolt Carrier Groups
Image of AR15 Upper Receivers category AR15 Upper Receivers
Image of Rifle Barrels category Rifle Barrels
Image of AR15 Magazine Catches & Releases category AR15 Magazine Catches & Releases
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Image of AR Handguards & Forends category AR Handguards & Forends
Image of Muzzle Devices category Muzzle Devices
Image of Weapon Accessories category Weapon Accessories
Image of Muzzle Brakes & Compensators category Muzzle Brakes & Compensators

498 Products in CMMG

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Image of CMMG, Inc Firing Pin Retainer 2 models CMMG, Inc Firing Pin Retainer (8) As Low As (Save Up to 67%) $0.99 Blazin' Deal
Image of CMMG AR-15 ZEROED Gunbuilder's Lower Parts Kit CMMG AR-15 ZEROED Gunbuilder's Lower Parts Kit (13) List: $89.95 (Save 13%) $78.28 Blazin' Deal
Image of CMMG DISSENT Mk4, 300BLK, 6.5in Upper Receiver 7 models CMMG DISSENT Mk4, 300BLK, 6.5in Upper Receiver (2) As Low As (Save Up to 17%) $1,199.00 Free 2 Day Shipping
Image of CMMG ZEROED AR15 Ambi Mag Catch and Button Kit CMMG ZEROED AR15 Ambi Mag Catch and Button Kit (12) List: $49.95 (Save 19%) $40.34 Blazin' Deal
Image of Cmmg, Inc AR15, Ambi Magazine Catch w/Mag Release Button and Spring 2 models Cmmg, Inc AR15, Ambi Magazine Catch w/Mag Release Button and Spring (19) As Low As (Save Up to 21%) $31.66 Blazin' Deal
Image of CMMG Mk4 Resolute Upper Receiver Group 8 models CMMG Mk4 Resolute Upper Receiver Group (2) As Low As (Save Up to 22%) $679.99 Blazin' Deal
Image of CMMG, Inc AR15 Lower Pins and Springs Parts Kit CMMG, Inc AR15 Lower Pins and Springs Parts Kit (12) List: $14.95 (Save 21%) $11.76 Blazin' Deal
Image of CMMG, Inc PS90 5. 10.4in. Barrel CMMG, Inc PS90 5. 10.4in. Barrel (10) List: $299.95 Add to Cart for Your
Special Price Best Rated
Image of CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver 9 models CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver As Low As (Save Up to 24%) $1,099.00 Final Sale
Image of CMMG Mk4 .300BLK 12.5in Banshee Upper Group Receiver 6 models CMMG Mk4 .300BLK 12.5in Banshee Upper Group Receiver As Low As (Save Up to 17%) $729.99
Image of CMMG, Inc 22LR AR Conversion Kit, Bravo, 10 Rounds 2 models CMMG, Inc 22LR AR Conversion Kit, Bravo, 10 Rounds (4) As Low As (Save Up to 13%) $176.49
Image of CMMG Mk4 Banshee Upper Receiver Group 2 models CMMG Mk4 Banshee Upper Receiver Group (1) List: $724.95 (Save Up to 19%) $609.99 Free 2 Day Shipping
Image of CMMG Resolute Upper Receiver Group 2 models CMMG Resolute Upper Receiver Group (1) As Low As (Save Up to $89.96) $909.99
Image of CMMG Mk3 Endeavor Upper Receiver Group 4 models CMMG Mk3 Endeavor Upper Receiver Group As Low As (Save Up to 17%) $999.99
Image of CMMG DISSENT Mk4, 5.56x45mm NATO, 10.5in Upper Receiver 7 models CMMG DISSENT Mk4, 5.56x45mm NATO, 10.5in Upper Receiver As Low As (Save Up to 15%) $1,279.00
Image of CMMG 57 X 28mm Barrel And Bcg Kit 3 models CMMG 57 X 28mm Barrel And Bcg Kit As Low As (Save Up to 14%) $406.99 Free 2 Day Shipping
Image of CMMG, Inc 9mm Barrel and Bolt Carrier Group (BCG) Kit 2 models CMMG, Inc 9mm Barrel and Bolt Carrier Group (BCG) Kit (14) As Low As (Save Up to 12%) $419.99
Image of CMMG DISSENT 9mm, 6.5in Upper Receiver 7 models CMMG DISSENT 9mm, 6.5in Upper Receiver As Low As (Save Up to 11%) $1,289.00
Image of CMMG 5.7X28mm 8in Banshee Upper Group Receiver 6 models CMMG 5.7X28mm 8in Banshee Upper Group Receiver As Low As (Save Up to 10%) $829.99
Image of CMMG DISSENT Mk4, 5.56x45mm NATO, 6.5in Upper Receiver 7 models CMMG DISSENT Mk4, 5.56x45mm NATO, 6.5in Upper Receiver As Low As (Save Up to 15%) $1,239.00
Image of CMMG, Inc 22LR AR Conversion Kit, Mk57, w/ 3 Magazines, 10rd CMMG, Inc 22LR AR Conversion Kit, Mk57, w/ 3 Magazines, 10rd (3) List: $229.95 (Save 11%) $203.89
Image of CMMG 9mm 8in Banshee Upper Group Receiver 5 models CMMG 9mm 8in Banshee Upper Group Receiver (3) As Low As (Save Up to 10%) $829.99
Image of CMMG DISSENT Mk4, 300BLK, 10.5in Upper Receiver 7 models CMMG DISSENT Mk4, 300BLK, 10.5in Upper Receiver (1) As Low As (Save Up to 13%) $1,309.99
Image of CMMG Mk3 .308WIN 24in Endeavor Upper Group Receiver 6 models CMMG Mk3 .308WIN 24in Endeavor Upper Group Receiver As Low As (Save Up to 10%) $1,079.00
Image of CMMG Banshee Upper Receiver Group 4 models CMMG Banshee Upper Receiver Group (1) As Low As (Save Up to 10%) $809.99
Image of CMMG 9mm 5in Barrel Barrel and BCG Kit CMMG 9mm 5in Barrel Barrel and BCG Kit (2) List: $449.95 (Save $39.96) $409.99 Free 2 Day Shipping
Image of CMMG 9mm Banshee Upper Group Receiver 7 models CMMG 9mm Banshee Upper Group Receiver (2) As Low As (Save Up to $79.96) $819.99
Image of CMMG, Inc AR-15 .350 Legend 10 Rounds Magazine CMMG, Inc AR-15 .350 Legend 10 Rounds Magazine List: $41.44 (Save 51%) $20.36 Blazin' Deal
Image of CMMG, Inc 22LR AR Conversion Kit, Echo 2 models CMMG, Inc 22LR AR Conversion Kit, Echo (18) As Low As (Save $19.96) $209.99 Best Rated
Image of CMMG, Inc Auto Sear Trip And Anti -Bounce Weight Kit, .22 ARC CMMG, Inc Auto Sear Trip And Anti -Bounce Weight Kit, .22 ARC (12) List: $54.95 (Save 11%) $48.65 Blazin' Deal
Image of CMMG 22LR Mk4 Barrel Kits w/ Bolt Group 3 models CMMG 22LR Mk4 Barrel Kits w/ Bolt Group (46) As Low As (Save Up to 23%) $283.99 Free 2 Day Shipping
Image of CMMG Dissent, Mk3, .308 Winchester, 20 inch Upper Receiver 8 models CMMG Dissent, Mk3, .308 Winchester, 20 inch Upper Receiver As Low As (Save Up to 10%) $1,229.00 Newly Added
Image of CMMG .45ACP 5in Barrel and BCG Kit CMMG .45ACP 5in Barrel and BCG Kit List: $449.95 (Save 18%) $369.99 Free 2 Day Shipping
Image of CMMG, Inc AR-15 Receiver Extension and Stock Kit CMMG, Inc AR-15 Receiver Extension and Stock Kit (7) List: $99.95 (Save 11%) $88.50 Blazin' Deal
Image of CMMG Mk47 7.62X39mm Resolute Upper Group Receiver 2 models CMMG Mk47 7.62X39mm Resolute Upper Group Receiver As Low As (Save 16%) $922.00 Blazin' Deal
Image of CMMG Mk3 AR10/LR-308 ZEROED Lower Parts Kit CMMG Mk3 AR10/LR-308 ZEROED Lower Parts Kit (3) List: $134.95 (Save $4.96) $129.99
Image of CMMG Mk3 ZEROED Gunbuilder's Lower Parts Kit CMMG Mk3 ZEROED Gunbuilder's Lower Parts Kit (10) List: $130.02 (Save 23%) $99.99 Best Rated
Image of CMMG Dissent, Mk3, .308 Winchester, 16.1 inch Upper Receiver 8 models CMMG Dissent, Mk3, .308 Winchester, 16.1 inch Upper Receiver As Low As (Save Up to 10%) $1,229.00 Newly Added
Image of CMMG AR-15 ZEROED Lower Parts Kit CMMG AR-15 ZEROED Lower Parts Kit (2) List: $175.05 (Save 27%) $127.99
Image of CMMG, Inc 22LR AR Conversion Kit, Bravo 2 models CMMG, Inc 22LR AR Conversion Kit, Bravo (34) As Low As (Save Up to 16%) $159.99 Free 2 Day Shipping
Image of CMMG ZEROED 9mm Linear Compensator CMMG ZEROED 9mm Linear Compensator (3) List: $74.95 (Save 21%) $59.35 Blazin' Deal
Image of CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver 6 models CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver As Low As (Save Up to 10%) $809.99
Image of CMMG Mk4 6mm ARC Resolute Upper Group Receiver 6 models CMMG Mk4 6mm ARC Resolute Upper Group Receiver As Low As (Save Up to 10%) $809.99
Image of CMMG ZEROED AR15 Bolt Catch Kit CMMG ZEROED AR15 Bolt Catch Kit (4) List: $17.95 (Save 18%) $14.79 Blazin' Deal
Image of CMMG, Inc 22LR Bolt Group, No Magazine CMMG, Inc 22LR Bolt Group, No Magazine (3) List: $189.95 (Save 16%) $159.99 Blazin' Deal
Image of CMMG ZEROED 5.56 Linear Compensator CMMG ZEROED 5.56 Linear Compensator (4) List: $74.95 (Save 22%) $58.31 Blazin' Deal
Image of CMMG, Inc 22LR AR Conversion kit, Mk57, 10rd CMMG, Inc 22LR AR Conversion kit, Mk57, 10rd (2) List: $199.95 (Save $13.96) $185.99 Free 2 Day Shipping
Image of CMMG 22LR M4 Profiled Barrel and Collar Kit CMMG 22LR M4 Profiled Barrel and Collar Kit (9) List: $224.95 (Save 13%) $195.99
Image of CMMG ZEROED AR15 Bolt Catch CMMG ZEROED AR15 Bolt Catch (9) List: $14.95 (Save 20%) $11.95 Blazin' Deal
Image of CMMG, Inc Ambidextrous Safety Selector Kit CMMG, Inc Ambidextrous Safety Selector Kit (31) List: $29.95 (Save 14%) $25.71 Blazin' Deal
Image of CMMG, Inc AR-15 Bolt Catch Parts Kit CMMG, Inc AR-15 Bolt Catch Parts Kit (4) List: $11.95 (Save 20%) $9.55 Blazin' Deal
Image of CMMG Mk4 .300BLK Banshee Upper Group Receiver 12 models CMMG Mk4 .300BLK Banshee Upper Group Receiver As Low As (Save Up to 12%) $729.99
Image of CMMG, Inc Thread Adapter, PS90 CMMG, Inc Thread Adapter, PS90 (3) List: $69.95 (Save 16%) $58.59 Blazin' Deal
Image of CMMG, Inc AR-15 6.5 Grendel Magazine, 10Rd CMMG, Inc AR-15 6.5 Grendel Magazine, 10Rd (2) List: $33.19 (Save 50%) $16.55 Blazin' Deal
Image of CMMG, Inc .45ACP Barrel and Bolt Carrier Group Kit 3 models CMMG, Inc .45ACP Barrel and Bolt Carrier Group Kit As Low As (Save Up to 34%) $331.97 Blazin' Deal
Image of CMMG Dissent, Mk3, 6.5mm Creedmoor, 20 inch Upper Receiver 8 models CMMG Dissent, Mk3, 6.5mm Creedmoor, 20 inch Upper Receiver As Low As (Save Up to 10%) $1,229.00 Newly Added
Image of CMMG 4.6X30mm Hk Barrel And Bcg Kit CMMG 4.6X30mm Hk Barrel And Bcg Kit (1) List: $449.95 (Save $29.96) $419.99
Image of CMMG, Inc 6.5 Creedmoor Bolt Carrier Group (BCG) CMMG, Inc 6.5 Creedmoor Bolt Carrier Group (BCG) List: $319.95 (Save 16%) $269.99
Image of Cmmg, Inc AR15, Ambi Magazine Catch 2 models Cmmg, Inc AR15, Ambi Magazine Catch (18) As Low As (Save Up to 20%) $28.05 Blazin' Deal
Image of CMMG, Inc FNH P90 Style Flash Hider CMMG, Inc FNH P90 Style Flash Hider (4) List: $119.95 (Save 12%) $105.79
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