PTR 51P BR – 7.62X51MM – PISTOL WITH COLLAPSIBLE BRACE
$1,899.00
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The PTR 51P BR is a semi-automatic 7.62×51mm pistol configured with a factory-installed collapsible pistol brace, delivering rifle-caliber performance in a compact, traditionally styled platform. Sold as a pistol at the point of sale, it utilizes PTR’s roller-delayed blowback operating system to provide smooth recoil characteristics and consistent cycling.
Built around an 8.5″ barrel and classic polymer furniture, the 51P BR emphasizes compact handling, optic compatibility, and durability. It represents the traditional braced pistol configuration within the PTR 7.62×51 lineup, balancing full-power performance with a compact footprint.
- Product Description
Product Description
The PTR 51P BR – 7.62×51mm Pistol with Collapsible Brace is a factory-configured, roller-delayed platform engineered to deliver rifle-caliber capability while retaining pistol classification at the point of sale. Sold with an SBA4™ collapsible pistol brace installed, the 51P BR provides additional rear support while maintaining a non-stock configuration.
The platform operates using PTR’s proven roller-delayed blowback system, producing a smooth recoil impulse and reliable cycling with full-power 7.62×51mm ammunition. A heat-treated, full-auto profile bolt carrier enhances durability and supports sustained operation. The semi-automatic action is host-ready for use with NFA-registered auto sear packs where legally applicable. The overall finish consists of black powder coating over Parkerizing for corrosion resistance and long-term wear protection.
The 8.5″ stress-relieved, heavy-contour barrel features a 1:10″ right-hand twist and is threaded 5/8×24, supporting common muzzle devices. A 6.9″ steel Picatinny rail allows optic mounting without altering the traditional polymer handguard configuration, preserving classic PTR ergonomics while supporting modern optics.
With the brace extended, the 51P BR measures approximately 32.5″ in overall length and collapses to approximately 30″. The pistol weighs 9.07 lbs unloaded and feeds from 20-round aluminum magazines. The trigger pull is set between 9–10 lbs for consistent operation. Each pistol ships in a polymer case with foam padding and includes one magazine and a trigger cable lock.
Within the PTR lineup, the 51P BR occupies the traditional braced pistol segment in 7.62×51mm, offering full-power cartridge performance, classic furniture, and roller-delayed reliability in a compact pistol configuration.
- Product Specifications
Product Specifications
Caliber 7.62x51mm
Action Semi-automatic (Host ready for NFA-registered, auto sear pack)
Carrier Heat treated, full-auto bolt carrier
Overall Finish Powder coated over Parkerizing
Barrel 8.5" Stress relieved, heavy contour, threaded 5/8" x 24, twist 1 in 10" RH
Barrel Overall Length 8.39"
Optic Mount 6.9" Steel Picatinny rail
Handguard Traditional polymer
Trigger Pull 9-10 lbs.
Magazine 20 Round aluminum
Length 32.5 ectended 30 collapesd
Weight Unloaded 9.07 lbs.
Brace SBA4™
Color Black
Case Polymer case with foam padding
Included Accessories 1 Magazine, trigger cable lock
Trigger Housing Indicator 2 Position
- Lifetime Warranty
All of our products are built to last. We proudly stand behind the quality of every product we manufacture and hope you’re happy with your gear. All products we manufacture are fully warranted against defects in materials and workmanship with a Limited Lifetime Warranty.
































