CMMG 416 Stainless 18" Upper Group Mk4 3GR 5.56mm 3 Gun AR15
CMMG 416 Stainless 18' Upper Group Mk4 3GR 5.56mm 3 Gun AR15

CMMG 416 Stainless 18" Upper Group Mk4 3GR 5.56mm 3 Gun AR15

Part Number:55B66C7
On sale: $739.95
Retail Price:$789.95
You Save:$50.00(6%)
In Stock.

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Length
Size
Style
Accessories
None
One 3" Rail [+$17.94]
Two 3" Rails [+$34.95]
Three 3" Rails [+$51.95]
Add Keymod QD Sling Swivel [+$20.95]

CMMG 416 Stainless 18" Upper Group Mk4 3GR 5.56mm 3 Gun AR15

 

 


The Mk4 3-Gun Upper is perfect for new and veteran 3-gun shooters alike. The 3GR includes our RKM14 KeyMod free floating hand guard and SV muzzle break. The barrel is a bead blasted matte finish 416 stainless steel 1:7” twist 18” barrel.

Caliber: 5.56mm
Barrel: 18” medium weight tapered profile Bead Blasted 416 SS 1:7”
Muzzle: CMMG SV brake, threaded 1/2-28
Hand Guard: CMMG RKM14 KeyMod hand guard
Upper Rcvr: Forged 7075 T-6 AL M4 type
CMMG Complete Upper Receiver 55B66C7
5.56mm NATO (accepts .223 Remington)
Bolt carrier group
Charging Handle
Matte black

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