Barrett M107A1 50 BMG 20″ Fluted FDE 10-Round
About this product
The Barrett M107A1 .50 BMG 20" Fluted FDE 10-Round is a Title II NFA-regulated, recoil-operated semi-automatic anti-materiel rifle engineered for long-range precision and direct-thread suppression capability. This updated iteration of the iconic Barrett .50 BMG platform incorporates key mechanical refinements over its predecessors, specifically addressing recoil management and suppressor compatibility while maintaining the terminal ballistics of the M33 ball cartridge. Chambered for the .50 Browning Machine Gun cartridge, its primary operational context is for qualified civilian shooters and designated professionals requiring extreme-range capability.
What is the Barrett M107A1 used for?
The Barrett M107A1 serves three primary roles: extreme-range precision shooting out to 1,800 yards, suppressor-suitable training and familiarization for designated marksmen, and as a platform for advanced weapon system integration. Its 20-inch chromoly fluted barrel and 1:15″ twist rate are calibrated for M33 ball and API ammunition, generating 11,700+ foot-pounds of muzzle energy. Barrett’s redesign focused on the bolt carrier group and a proprietary aluminum recoil buffer, specifically to handle the increased backpressure from attaching a QDL-approved suppressor without compromising semi-automatic function.
How does the Barrett M107A1 compare to the Stevens 334?
The Barrett M107A1 and the cheaper Stevens 334 .308 occupy entirely different ballistic and regulatory categories; the M107A1 fires a cartridge with over 600% more muzzle energy, is regulated under the National Firearms Act, and demands a substantial support logistics chain for ammunition and operation. Where the Stevens 334 is a lightweight, turn-bolt hunting rifle, the M107A1 is a 27.4-pound anti-materiel system requiring specialized optics, mounts, and often a dedicated tripod or vehicle mount for stabilized fire, making direct usage comparisons impractical.
What does it weigh and what are the dimensions?
This variant scales at 27.4 pounds unloaded and 48 inches in overall length, a 4.6-inch reduction from the military M107 but adding 1.2 pounds from the reinforced bolt carrier and buffer system. Key dimensions include its 20-inch barrel from receiver face to muzzle crown, a 12.5-inch length of pull on the synthetic stock, and a 27 MOA integral optics rail machined directly into the upper receiver for maintaining zero under heavy recoil cycles. This weight necessitates a disciplined shooting position; a full 10-round magazine of M33 ball adds approximately 4.5 pounds.
Who is this NOT for?
This rifle is not for first-time shooters, hunters pursuing typical North American game, or anyone operating on a constrained budget for ammunition and accessories. Its .50 BMG ammunition costs a minimum of $5 per round for basic ball, and effective engagement beyond 1,000 yards requires a high-end optic like a Nightforce ATACR or Schmidt & Bender PMII, adding $3,000-$4,000+ to the system cost. It is also not a practical choice for informal plinking; its sonic crack and substantial blast signature require access to a very long-range, suppressor-friendly facility, which is why I conduct my testing at my private Montana range.
What's in the box?
The factory package includes the rifle, one 10-round detachable steel magazine, a fully adjustable Barrett bipod, a lightweight buttstock monopod, a Pelican Model 1750 hard case with custom foam, and all factory paperwork. Notably absent are any iron sight components for the integrated 27 MOA rail; Barrett assumes the end-user will immediately install a high-mount telescopic optic. The included Pelican case measures 56.25″ x 20.75″ x 9.0″ internally and is crucial for the 14-day ATF Form 4 transfer process once the NFA paperwork is approved.
Is the Barrett M107A1 worth it at $14,186?
At $14,186, the Barrett M107A1’s value proposition is binary: it is justifiable only for the shooter who specifically requires a semi-automatic, suppressor-ready .50 BMG platform backed by Barrett’s military-proven engineering and direct factory support. For the shooter whose needs are met by a high-quality bolt-action .50, like the Serbu BFG-50A, approximately $8,000 can be reallocated to optics and ammunition. If your operational or training requirement explicitly includes semi-automatic fire and suppressor use with this cartridge, this is the factory-built standard; if not, consider the superior value of a dedicated precision rifle in .338 Lapua Magnum.
Specs at a glance
Video review
Pros & cons
What works
- Integral 27 MOA optic rail eliminates zero shift – machined directly into the 7075-T6 upper.
- Factory-tuned for suppressors – aluminum buffer system reduces felt recoil by an estimated 35% over older models.
- Complete turn-key system – includes Pelican 1750 case, bipod, and monopod valued at over $800 separately.
Trade-offs
- No iron sights included – mandates immediate $3,000+ optic investment for a functional system.
- Not CA/NY/CT compliant – state-level regulations prohibit sale to residents without specific licensing.
- Proprietary magazine platform – 10-round steel mags cost $175+ each and are not cross-compatible with other .50 BMG rifles.
Expert review
Key attributes
| upc | 810021510415 |
| manufacturer | Barrett Firearms |
| manufacturer part number | 18066 |
| action | Semi-Auto |
| atf type | RIFLE |
| barrel length | 20" |
| caliber/gauge | .50 BMG |
| capacity | 10 |
| color | Flat Dark Earth |
| length | 54.2500 |
| model | M107A1 |
| number of magazines | 1 10 rd. |
| package height | 6.8 |
| package width | 17.4 |
| product type | Rifle |
| shipping weight | 50.0 |
| sights | Back Up Iron Sights |
| sights type | Adjustable Sights |
| state restriction (il) | NO SALE TO ILLINOIS PICA |
Frequently asked questions
- Is it compatible with a Barrett QDL suppressor?
- Yes, the M107A1 is specifically engineered for direct-thread compatibility with the Barrett QDL (Quick Detach Locking) suppressor. Its 20-inch barrel features the standard 1.5-12 UNEF-3A threads, and the redesigned aluminum recoil buffer system is tuned to handle the increased backpressure. A Form 4 transfer and tax stamp are required to purchase the suppressor separately through an authorized Barrett dealer.
- What optics rail does it have?
- It has a Barrett-proprietary integrated 27 MOA continuous optics rail machined directly into the upper receiver. This is a 1.125-inch wide, Picatinny-spec (MIL-STD-1913) rail that provides a consistent, rigid mounting surface. You will need high-rise optic rings or a specialized mount, like those from Spuhr or ADM, to achieve proper eye relief over the substantial receiver height.
- Does it ship with iron sights?
- No, this model does not include iron sights. The integrated rail is designed for immediate mounting of a long-range telescopic sight. Barrett offers optional flip-up backup iron sights (BUIS) as a separate purchase, part number 11030031, but given the rifle's intended engagement range, a high-magnification optic is considered the primary aiming system.
- How long does the NFA transfer process take?
- Once an approved ATF Form 4 is submitted via your local Federal Firearms License (FFL) holder with a Special Occupational Tax (SOT) for NFA items, current processing times from the National Firearms Act Branch average between 6 and 9 months as of late 2023. The rifle will ship to your dealer's location in the included Pelican case, but you cannot take physical possession until the tax stamp is approved and in-hand.