Skip to main content
We may get paid by partner for deals, including promoted items

Menu

Trending
Top Brands Palmetto State ArmoryHot Yeti CoolerDeal NatchezDeal SitkaDeal 5.11Sale Winter Clearance Amazon Pickleball Sale Amazon FitnessHot Stores
Receiver Extension, A1 by CMMG -

Product Description

Rifle length buffer tube AR-15/M4/ M16/LR-308 pattern. Made from black hard coat anodized aluminum, the CMMG A1 receiver extension (buffer tube) is designed to accept fixed rifle length stocks and is compatible with Mk4 (AR-15) and Mk3 (LR-308) lower receivers.

Receiver Extension, A1

at CMMG
Browse all CMMG deals
$44.95
In Stock at CMMG
Buy Now at CMMG
Secure checkout Easy returns
or compare prices
Amazon logo Amazon eBay logo eBay

Product Details

Brand CMMG
CMMG

More from CMMG

Pyramyd Air
Last Updated:
Sep 30, 2026 08:44 PM
CMMG Banshee 5.7x28mm 5, Armor Black CMMG Banshee 5.7x28mm 5, Armor Black View Details
$926.20
Buy Now · $926.20
Pyramyd Air
KFF Defense
Last Updated:
Sep 30, 2026 08:30 PM
CMMG Banshee MK4 Tungsten Cerakote 300 Blackout 30+1 12.50" AR Pistol CMMG Banshee MK4 Tungsten Cerakote 300 Blackout 30+1 12.50" AR Pistol View Details
$1614.03 $1837.11
12% off
Buy Now · $1614.03
KFF Defense
KFF Defense
Last Updated:
Sep 30, 2026 08:30 PM
CMMG Banshee MK4 EML M-LOK Black Armor Cerakote 5.56x45mm 12.50" AR Pistol CMMG Banshee MK4 EML M-LOK Black Armor Cerakote 5.56x45mm 12.50" AR Pistol View Details
$1614.03 $1837.11
12% off
Buy Now · $1614.03
KFF Defense
KFF Defense
Last Updated:
Sep 30, 2026 08:30 PM
CMMG Dissent BR3 CA Compliant .308 Win 10rd 16.10" Threaded Barrel Rifle CMMG Dissent BR3 CA Compliant .308 Win 10rd 16.10" Threaded Barrel Rifle View Details
$2151.13 $2448.45
12% off
Buy Now · $2151.13
KFF Defense
KFF Defense
Last Updated:
Sep 30, 2026 08:30 PM
CMMG Mk4 Stripped Armor Black Cerakote AR-15 Lower Receiver CMMG Mk4 Stripped Armor Black Cerakote AR-15 Lower Receiver View Details
$113.10 $128.73
12% off
Buy Now · $113.10
KFF Defense
GrabAGun
Last Updated:
Sep 30, 2026 08:12 PM
AR15/M16 22LR BOLT REHAB KIT AR15/M16 22LR BOLT REHAB KIT View Details
$26.99 $34.95
23% off
Buy Now · $26.99
GrabAGun
GrabAGun
Last Updated:
Sep 30, 2026 08:12 PM
CMMG AR-15 Bolt Catch CMMG AR-15 Bolt Catch View Details
$8.79 $9.95
12% off
Buy Now · $8.79
GrabAGun
GrabAGun
Last Updated:
Sep 30, 2026 08:12 PM
CMMG Dissent BR3 Midnight Bronze .308 Win 16.1 P&W Barrel 10-Rounds CMMG Dissent BR3 Midnight Bronze .308 Win 16.1 P&W Barrel 10-Rounds View Details
$1842.99 $2099.95
12% off
Buy Now · $1842.99
GrabAGun
GrabAGun
Last Updated:
Sep 30, 2026 08:12 PM
CMMG Dissent MK3 Tungsten 8.6 Blackout 12.5 Barrel 30-Rounds w/ Brace CMMG Dissent MK3 Tungsten 8.6 Blackout 12.5 Barrel 30-Rounds w/ Brace View Details
$2099.99 $2249.95
7% off
Buy Now · $2099.99
GrabAGun
GrabAGun
Last Updated:
Sep 30, 2026 08:12 PM
CMMG Banshee MK4 Tungsten 9mm 5 Threaded Barrel 30-Rounds w/ Brace CMMG Banshee MK4 Tungsten 9mm 5 Threaded Barrel 30-Rounds w/ Brace View Details
$1609.99 $1649.95
2% off
Buy Now · $1609.99
GrabAGun
GrabAGun
Last Updated:
Sep 30, 2026 08:12 PM
CMMG Resolute Mk4 DISSENT Upper Group .300 AAC Blackout 14.5 P&W Barrel CMMG Resolute Mk4 DISSENT Upper Group .300 AAC Blackout 14.5 P&W Barrel View Details
$449.99 $609.95
26% off
Buy Now · $449.99
GrabAGun
GrabAGun
Last Updated:
Sep 30, 2026 08:12 PM
CMMG Resolute MK3 Midnight Bronze .308 Win 16.1 Barrel 20-Rounds CMMG Resolute MK3 Midnight Bronze .308 Win 16.1 Barrel 20-Rounds View Details
$1709.99 $1949.95
12% off
Buy Now · $1709.99
GrabAGun
GrabAGun
Last Updated:
Sep 30, 2026 08:12 PM
CMMG Banshee MKGS Coyote 9mm 8 Barrel 33-Rounds w/ RIP Brace CMMG Banshee MKGS Coyote 9mm 8 Barrel 33-Rounds w/ RIP Brace View Details
$1629.99 $1749.95
7% off
Buy Now · $1629.99
GrabAGun
GrabAGun
Last Updated:
Sep 30, 2026 08:12 PM
CMMG Banshee Mk4 SBR Bronze 9mm 5 Barrel 30-Rounds CMMG Banshee Mk4 SBR Bronze 9mm 5 Barrel 30-Rounds View Details
$1609.99 $1649.95
2% off
Buy Now · $1609.99
GrabAGun
KYGUNCO
Last Updated:
Sep 30, 2026 06:27 PM
CMMG Banshee MkGs Pistol 9mm 5" Fixed Ejector Armor Blk CMMG Banshee MkGs Pistol 9mm 5" Fixed Ejector Armor Blk View Details
$1569.99
Buy Now · $1569.99
KYGUNCO
KYGUNCO
Last Updated:
Sep 30, 2026 06:27 PM
CMMG AR-15 Rifle 5.56mm A0B CMMG AR-15 Rifle 5.56mm A0B View Details
$978.99
Buy Now · $978.99
KYGUNCO
DEGuns
Last Updated:
Sep 30, 2026 06:08 PM
CMMG 60AF30CCT Resolute MK4 6mm ARC AR-15 Semi Automatic Rifle CMMG 60AF30CCT Resolute MK4 6mm ARC AR-15 Semi Automatic Rifle View Details
$1524.99
Buy Now · $1524.99
DEGuns
DEGuns
Last Updated:
Sep 30, 2026 06:08 PM
CMMG 55AC20AAB Banshee MK4 5.56x45mm AR-15 Pistol CMMG 55AC20AAB Banshee MK4 5.56x45mm AR-15 Pistol View Details
$1501.99
Buy Now · $1501.99
DEGuns
DEGuns
Last Updated:
Sep 30, 2026 06:08 PM
CMMG 57BBCF0AB Banshee 5.7x28mm 5", Armor Black, M-Lok Free-Float Handgaurd for AR-Platform CMMG 57BBCF0AB Banshee 5.7x28mm 5", Armor Black, M-Lok Free-Float Handgaurd for AR-Platform View Details
$830.99
Buy Now · $830.99
DEGuns
DEGuns
Last Updated:
Sep 30, 2026 06:08 PM
CMMG 99A6832-TNG Zeroed Banshee MkGs 9mm Luger 33+1 6.50" Black Nitride Threaded Barrel CMMG 99A6832-TNG Zeroed Banshee MkGs 9mm Luger 33+1 6.50" Black Nitride Threaded Barrel View Details
$2192.99
Buy Now · $2192.99
DEGuns