“Diamondback 556C16MF50B8R DB Barrel (M4 Contour) 5.56x45mm NATO 16″ Black Nitride 4150 Chrome Moly Vanadium Steel” has been added to your cart. View cart

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June 9, 2025CMMG 55D590A Barrel Sub-Assembly 5.56x45mm NATO 16.10″ Stainless Bead Blasted Finish 416R Stainless Steel Material Midlength with Medium Taper Profile for AR-15
$197.70
CMMG 55D590A Barrel Sub-Assembly 5.56x45mm NATO 16.10″ Stainless Bead Blasted Finish 416R Stainless Steel Material Midlength with Medium Taper Profile for AR-15
2 in stock
SKU: TSW|3188
Category: AR Barrels
CMMG’s Barrel Sub-Assembly is ideal for building your custom AR-15 upper group. It comes with properly installed M4 barrel extension.
UPC | 815835016160 |
---|---|
Manufacturer | CMMG |
Manufacturer Part Number | 55D590A |
Caliber/Gauge | .223 REM/5.56 NATO |
Length | 16.10" |
Model | Barrel Sub-Assembly |
Rate of Twist | 1:7" |
Product Type | Rifle |