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The Barrett M107A1 .50 BMG 20" in Black — the compact M107A1 configuration with aluminum upper, hydraulic buffer, and Barrett QDL suppressor compatibility. 10-round magazine. Authorized Barrett dealer.
Update, October 9, 2026: ATF no longer requires a Form 4, tax stamp, fingerprints or registration for suppressors, short-barreled rifles, short-barreled shotguns or AOWs. They now transfer on a standard Form 4473 with a background check. Anything below that mentions a Form 4, a wait or a tax stamp was written before this change. What changed
Barrett M107A1 — The US Army’s Semi-Automatic .50 Caliber
The M107A1 is the current-generation semi-automatic .50 BMG rifle in service with the United States Army as the M107 Anti-Materiel/Sniper Rifle System. It represents the evolutionary refinement of the M82A1 design — lighter, suppressor-capable, with a hydraulic buffer system and an improved top rail. If the M82A1 is the rifle that proved the concept, the M107A1 is the version that refined every known limitation of the platform based on decades of military feedback.
The most significant improvements over the M82A1 are: an aluminum upper receiver (reducing weight), a hydraulic buffer system (smoother operation and longer service life), a full-length continuous top rail (better optic and accessory mounting), and factory compatibility with the Barrett QDL suppressor.
Full Specifications
Specification
M107A1 — 29" Barrel
M107A1 — 20" Barrel
Caliber
.50 BMG (12.7×99mm NATO)
.50 BMG (12.7×99mm NATO)
Operation
Recoil-operated, semi-auto
Recoil-operated, semi-auto
Barrel length
29" (737 mm), fluted
20" (508 mm), fluted
Upper receiver
Aluminum (lighter than M82A1)
Aluminum
Buffer system
Hydraulic buffer
Hydraulic buffer
Magazine capacity
10 rounds
10 rounds
Top rail
Long continuous M1913 Picatinny
Long continuous M1913 Picatinny
Suppressor compatible
Yes — Barrett QDL
Yes — Barrett QDL
Bipod
Included
Included
Iron sights
Front and rear flip-up
Front and rear flip-up
Available finishes
Black, FDE, Grey
Black, Grey
M107A1 vs M82A1 — Key Differences
Feature
M82A1
M107A1
Upper receiver material
Steel
Aluminum (lighter)
Buffer system
Standard
Hydraulic
Suppressor compatible
No
Yes (Barrett QDL)
Top rail
23" M1913
Full-length continuous M1913
Current US military standard
Legacy (original issue)
Yes — active issue
Price
~$9,500–$9,900
~$14,186
The Hydraulic Buffer System
The M107A1’s hydraulic buffer unit provides a more controlled deceleration of the bolt carrier group during the rearward stroke, which results in smoother felt recoil, improved reliability across varied ammunition types, and longer service life on high-round-count rifles. For a platform that costs $14,000+, the hydraulic buffer is the detail that separates a tool built for sustained use from one built for occasional range sessions.
Suppressor Compatibility
The M107A1 ships with a suppressor-capable muzzle device and is compatible with the Barrett QDL (Quick Detach Large caliber) suppressor. The QDL attaches without tools and is designed for minimal point-of-impact shift between suppressed and unsuppressed configurations.
Frequently Asked Questions
What is the difference between the M107 and M107A1?
The M107A1 is an upgraded version of the M107, which was itself derived from the M82A1. The A1 designation reflects improvements including a lighter receiver, the hydraulic buffer system, and factory suppressor compatibility. The M107A1 is the current-issue version.
What suppressor is compatible with the M107A1?
The Barrett QDL (Quick Detach Large caliber) suppressor. It attaches via a quick-detach interface without tools. The Barrett QDL is an NFA item — since October 9, 2026 it transfers on a standard Form 4473 and background check, with no Form 4 or wait.
Do the M107A1 and M82A1 share magazines?
No. The M107A1 and M82A1 use different magazines that are not interchangeable, despite both being .50 BMG. Always confirm magazine compatibility before purchasing spare magazines.
What is the effective range of the M107A1?
The M107A1 is rated for anti-materiel use to 1,800 meters under operational conditions. For civilian precision shooting, 1,000–1,500 yards is a practical working range for a trained shooter with quality match ammunition and appropriate optics.
Does the M107A1 come with a scope?
No. The rifle ships with bipod, iron sights, and hard case. A separate optic in the 5-25× or 5-35× range is required.
Ordering from Western Sport
Order online and we ship it to the licensed FFL dealer you choose near you — see how buying a gun online works. Western Sport has been a licensed FFL/SOT dealer since 2007, and everything we sell carries the full manufacturer warranty. Questions before you order? Send us a message.
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