Rosco Manufacturing Bloodline 5.56 AR-15 Barrel Government Carbine - 12.5"
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Rosco Manufacturing
Overview
The Rosco Manufacturing Bloodline 5.56 AR-15 Barrel features a 12.5-inch length with a Government profile, designed for optimal balance and performance in a compact build. It utilizes a Carbine-length gas system and has a 1:7 twist rate, making it well-suited for stabilizing a variety of 5.56 NATO ammunition. This barrel is commonly found in builds that prioritize a shorter overall length while retaining reliable functionality, making it ideal for tactical applications or home defense setups.
Specifications
Rosco Manufacturing Bloodline 5.56 AR-15 Barrel Government Carbine - 12.5"
Build history on GunPartPicker
Builders have been adding the Rosco Manufacturing Bloodline 5.56 AR-15 Barrel Government Carbine - 12.5" to their builds on GunPartPicker since February 2026. All time, it ranks #241 of the 815 barrels builders have added. Builds with this barrel are nearly all chambered in 5.56 NATO, nearly all on carbine-length gas, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today 5 of the 6 retailers we track have it in stock. The best price crept up from $125.99 to $131.50 over August 2026. Buying today, the lowest price is $123.99 at Optics Planet, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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Frequently Built With
The part most often added in each category by the 11 builds that include this one
Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4
Bravo Company Manufacturing Complete AR-15 Lower Receiver Assembly With Mod 0 Stock
Centurion Arms Rifle, 12"
Breek Arms AR-15 Warhammer MOD2 Ambidextrous Charging Handle Black
Wilson Combat AR-15 Lo-Profile Gas Block .750" Black
Bravo Company Manufacturing AR-15 Bolt Carrier Group - M16
Builds Featuring This Part
See all 3 →Builds in the community that include the Rosco Manufacturing Bloodline 5.56 Ar-15 Barrel Government Carbine - 12.5"
| Build | Parts | Total |
|---|---|---|
 | 16 | $1238.81 |
 | 19 | $1451.36 |
 | 10 | $1039.05 |
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