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Ballistic Advantage
Overview
The Ballistic Advantage Modern Series .300 AR Rifle Barrel features a compact 10.5-inch length tailored for the .300 Blackout caliber, making it ideal for short-barreled rifle builds. This barrel utilizes a pistol-length gas system, which enhances reliability and reduces recoil, allowing for smoother operation in a compact package. Commonly, you'll find this barrel in builds designed for close-quarters engagements or suppressed applications, where versatility and maneuverability are key.
Ballistic Advantage Modern Series .300 AR Rifle Barrel 10.5in MSARB30
Prices checked
Builders have added the Ballistic Advantage Modern Series .300 AR Rifle Barrel 10.5in MSARB30 to their builds on GunPartPicker. Since April 2026, it ranks #94 of the 1,043 barrels builders have added.
It was hard to find in October 2026, in stock on only 9 of the 25 days we checked, and today none of the 7 retailers we track has it in stock right now. Listed prices start at $125.40 at AT3 Tactical for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
We ranked every barrel by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Barrel Length & Brand Report →Check it against the live catalog:
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Aggregated and anonymized data showing how builders use this product
Builds in the community that include the Ballistic Advantage Modern Series .300 AR Rifle Barrel 10.5in MSARB30
| Build | Parts | Total |
|---|---|---|
![]() | 11 | $1604.21 |
![]() | 21 | $1299.77 |
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