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
Diamondback 556P55H50B8R DB Barrel 5.56x45mm NATO 5.50" Pistol-Length Black Nitride 4150 Chrome Moly Vanadium Steel by Diamondback -

Product Description

Diamondback 556P55H50B8R DB Barrel 5.56x45mm NATO 5.50" Pistol-Length Black Nitride 4150 Chrome Moly Vanadium Steel

Diamondback 556P55H50B8R DB Barrel 5.56x45mm NATO 5.50" Pistol-Length Black Nitride 4150 Chrome Moly Vanadium Steel

at Shooting Surplus
Browse all Shooting Surplus deals
$81.87
In Stock at Shooting Surplus
Price verified 1d ago
Buy Now at Shooting Surplus
Secure checkout Easy returns
or compare prices
Amazon logo Amazon eBay logo eBay

Product Details

Brand Diamondback
MPN 556P55H50B8R
Gun Parts Diamondback

More from Diamondback

Shooting Surplus
Last Updated:
Oct 11, 2026 09:34 AM
Diamondback 223WR18H50B7 223 Wylde 18" Black QPQ Stainless Steel Barrel Diamondback 223WR18H50B7 223 Wylde 18" Black QPQ Stainless Steel Barrel View Details
$88.89
Buy Now · $88.89
Shooting Surplus
Shooting Surplus
Last Updated:
Oct 11, 2026 09:34 AM
Diamondback 65CR20M416SS8FR DB Barrel 6.5 Creedmoor 20" Rifle-Length Fluted Stainless Steel Diamondback 65CR20M416SS8FR DB Barrel 6.5 Creedmoor 20" Rifle-Length Fluted Stainless Steel View Details
$168.42
Buy Now · $168.42
Shooting Surplus
Shooting Surplus
Last Updated:
Oct 11, 2026 09:34 AM
Diamondback 300P10H50B8R DB Barrel 300 Blackout 10" Pistol-Length Black Nitride 4150 Chrome Moly Vanadium Steel Diamondback 300P10H50B8R DB Barrel 300 Blackout 10" Pistol-Length Black Nitride 4150 Chrome Moly Vanadium Steel View Details
$90.06
Buy Now · $90.06
Shooting Surplus
Shooting Surplus
Last Updated:
Oct 11, 2026 09:34 AM
Diamondback 300P85H50B8R DB Barrel 300 Blackout 8.50" Pistol-Length Black Nitride 4150 Chrome Moly Vanadium Steel Diamondback 300P85H50B8R DB Barrel 300 Blackout 8.50" Pistol-Length Black Nitride 4150 Chrome Moly Vanadium Steel View Details
$80.70
Buy Now · $80.70
Shooting Surplus
Shooting Surplus
Last Updated:
Oct 11, 2026 09:34 AM
Diamondback 300P16H50B8R DB Barrel 300 Blackout 16" Pistol-Length Black Nitride 4150 Chrome Moly Vanadium Steel Diamondback 300P16H50B8R DB Barrel 300 Blackout 16" Pistol-Length Black Nitride 4150 Chrome Moly Vanadium Steel View Details
$105.26
Buy Now · $105.26
Shooting Surplus
Shooting Surplus
Last Updated:
Oct 11, 2026 09:34 AM
Diamondback 556C10M50B8R DB Barrel 5.56x45mm NATO 10" Carbine-Length Black Nitride 4150 Chrome Moly Vanadium Steel Diamondback 556C10M50B8R DB Barrel 5.56x45mm NATO 10" Carbine-Length Black Nitride 4150 Chrome Moly Vanadium Steel View Details
$91.23
Buy Now · $91.23
Shooting Surplus
Shooting Surplus
Last Updated:
Oct 11, 2026 09:34 AM
Diamondback 762X39P7H50B95R DB Barrel 7.62x39mm 7" Black Nitride 4150 Chrome Moly Vanadium Steel Diamondback 762X39P7H50B95R DB Barrel 7.62x39mm 7" Black Nitride 4150 Chrome Moly Vanadium Steel View Details
$81.87
Buy Now · $81.87
Shooting Surplus
Shooting Surplus
Last Updated:
Oct 11, 2026 09:34 AM
Diamondback 556P7H50B8R DB Barrel 5.56x45mm NATO 7" Pistol-Length Black Nitride 4150 Chrome Moly Vanadium Steel Diamondback 556P7H50B8R DB Barrel 5.56x45mm NATO 7" Pistol-Length Black Nitride 4150 Chrome Moly Vanadium Steel View Details
$79.53
Buy Now · $79.53
Shooting Surplus
Shooting Surplus
Last Updated:
Oct 11, 2026 09:34 AM
Diamondback 9X1910M50B984NFR DB Barrel 9mm Luger 10" Black Nitride 4150 Chrome Moly Vanadium Steel Diamondback 9X1910M50B984NFR DB Barrel 9mm Luger 10" Black Nitride 4150 Chrome Moly Vanadium Steel View Details
$61.75
Buy Now · $61.75
Shooting Surplus
Shooting Surplus
Last Updated:
Oct 11, 2026 09:34 AM
Diamondback 556M16M50B8R DB Barrel 5.56x45mm NATO 16" Black Nitride Chrome Moly Vanadium Steel Diamondback 556M16M50B8R DB Barrel 5.56x45mm NATO 16" Black Nitride Chrome Moly Vanadium Steel View Details
$95.91
Buy Now · $95.91
Shooting Surplus
Shooting Surplus
Last Updated:
Oct 11, 2026 09:34 AM
Diamondback 556C16MF50B8R DB Barrel (M4 Contour) 5.56x45mm NATO 16" Black Nitride 4150 Chrome Moly Vanadium Steel Diamondback 556C16MF50B8R DB Barrel (M4 Contour) 5.56x45mm NATO 16" Black Nitride 4150 Chrome Moly Vanadium Steel View Details
$95.91
Buy Now · $95.91
Shooting Surplus
Shooting Surplus
Last Updated:
Oct 11, 2026 09:34 AM
Diamondback 556C16M50B8R DB Barrel 5.56x45mm NATO 16" Carbine-Length Black Nitride 4150 Chrome Moly Vanadium Steel Diamondback 556C16M50B8R DB Barrel 5.56x45mm NATO 16" Carbine-Length Black Nitride 4150 Chrome Moly Vanadium Steel View Details
$95.91
Buy Now · $95.91
Shooting Surplus
Shooting Surplus
Last Updated:
Oct 11, 2026 09:34 AM
Diamondback 308R18M50B10R DB Barrel 308 Win 18" Rifle-Length Black Nitride 4150 Chrome Moly Vanadium Steel Diamondback 308R18M50B10R DB Barrel 308 Win 18" Rifle-Length Black Nitride 4150 Chrome Moly Vanadium Steel View Details
$127.49
Buy Now · $127.49
Shooting Surplus
Shooting Surplus
Last Updated:
Oct 11, 2026 09:34 AM
Diamondback 308M135M50B10 DB Barrel 308 Win 13.50" Mid-Length Black Nitride 4150 Chrome Moly Vanadium Steel Diamondback 308M135M50B10 DB Barrel 308 Win 13.50" Mid-Length Black Nitride 4150 Chrome Moly Vanadium Steel View Details
$130.99
Buy Now · $130.99
Shooting Surplus
Shooting Surplus
Last Updated:
Oct 11, 2026 09:34 AM
Diamondback 308M16L50B10R DB Barrel 308 Win 16" Mid-Length Black Nitride 4150 Chrome Moly Vanadium Steel Diamondback 308M16L50B10R DB Barrel 308 Win 16" Mid-Length Black Nitride 4150 Chrome Moly Vanadium Steel View Details
$133.33
Buy Now · $133.33
Shooting Surplus
Shooting Surplus
Last Updated:
Oct 11, 2026 09:34 AM
Diamondback 65M18M50B8R DB Barrel 6.5 Grendel 18" Mid-Length Black Nitride 4150 Chrome Moly Vanadium Steel Diamondback 65M18M50B8R DB Barrel 6.5 Grendel 18" Mid-Length Black Nitride 4150 Chrome Moly Vanadium Steel View Details
$126.32
Buy Now · $126.32
Shooting Surplus
Palmetto State Armory
Last Updated:
Oct 11, 2026 06:29 AM
Diamondback Firearms Barrel - Black, Unleash Precision and Performance - 300P85H50B8R Diamondback Firearms Barrel - Black, Unleash Precision and Performance - 300P85H50B8R View Details
$72.99
Buy Now · $72.99
Palmetto State Armory
Palmetto State Armory
Last Updated:
Oct 11, 2026 06:29 AM
Diamondback Firearms Barrel - Black, Unleash Precision and Performance - 556C16MF50B8R Diamondback Firearms Barrel - Black, Unleash Precision and Performance - 556C16MF50B8R View Details
$86.99
Buy Now · $86.99
Palmetto State Armory
Palmetto State Armory
Last Updated:
Oct 11, 2026 06:29 AM
Diamondback Firearms Barrel - Black, Unleash Precision and Performance - 9X1910M50B984NFR Diamondback Firearms Barrel - Black, Unleash Precision and Performance - 9X1910M50B984NFR View Details
$66.99
Buy Now · $66.99
Palmetto State Armory