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300BLK 10.5" Medium Profile Pistol 1-7 Twist Thread Black

One Horse · Barrels

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300BLK 10.5" Medium Profile Pistol 1-7 Twist Thread Black

Best price

$88.49at Kentucky Gun Co

In stock checked Nov 13, 2026

Buy at Kentucky Gun Co

Compare 6 stores

Fits and works with

Caliber
300 Blackout · Shop matching ammo
Bolt
Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
Gas system
Pistol · Handguards
Barrel length
10.5" · Handguards

Specifications

Manufacturer
One Horse
Color
Black
Platform
AR-15
Caliber
300 Blackout
Gas system
Pistol
Barrel length
10.5"
Twist rate
1:7

Where to buy

StorePriceAvailabilityBuyAdd to build
Kentucky Gun Co Best price $88.49checked Nov 13, 2026 In stock Buy at Kentucky Gun Co
Ammunition Depot $90.99checked Nov 13, 2026 In stock Buy at Ammunition Depot
OpticsPlanet $114.99Salechecked Nov 13, 2026 In stock Buy at OpticsPlanet
Battlehawk Armory $76.99checked Nov 13, 2026 Check store Buy at Battlehawk Armory
GrabAGun $89.79checked Nov 13, 2026 Check store Buy at GrabAGun
Brownells 17.76% off · ends Nov 15 · exclusions apply $104.99checked Nov 13, 2026 Out of stock Buy at Brownells

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

Lowest in-stock price in the last 30 days: $86.49 at Ammunition Depot. Dashed line = out of stock. Tracking since Sep 28, 2026.

Show the prices as a table
StoreLatestLowestHighest
Ammunition Depot$90.99$86.49$90.99
Battlehawk Armory$76.99$76.99$76.99
Brownells$104.99$104.99$104.99
GrabAGun$89.79$89.79$89.79
Kentucky Gun Co$88.49$88.49$88.49
OpticsPlanet$114.99$114.99$114.99

Since Sep 28, 2026.

About this part

The 300BLK 10.5" Medium Profile Pistol 1-7 Twist Thread Black is a 10.5" 300 Blackout barrel from One Horse with a pistol gas system. It's sold by 6 stores (3 in stock), from $76.99 to $114.99. The lowest in-stock price in the last 30 days was $86.49 at Ammunition Depot.

From the manufacturer

ONE HORSE LLC 300BLK MEDIUM PROFILE PISTOL BARREL FOR AR-15 Build a compact, hard-hitting .300 Blackout rifle with this 10.5a ^2 Pistol Gas Barrel. Chambered for .300 Blackout with a 1:7 twist rate, this barrel ensures optimal stabilization for both subsonic and supersonic rounds, delivering precision for tactical, hunting, or suppressed applications. The pistol-length gas system provides smooth cycling and reduced recoil, while the premium nitride finish enhances corrosion resistance, durability, and ease of maintenance. Crafted to Mil-Spec standards, it's the perfect foundation for a high-performance AR15 pistol or SBR. FEATURES 10.5a ^2 Mfg: One Horse

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$88.49 at Kentucky Gun Co
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