PTR K3P BR – 7.62X51MM – PISTOL WITH COLLAPSIBLE BRACE

The PTR K3P BR – 7.62×51mm Pistol with Collapsible Brace is a factory-configured braced pistol engineered to deliver compact rifle-caliber performance while retaining pistol classification at the point of sale. Sold with an SBA4™ collapsible brace installed, the K3P BR combines extended barrel length with adjustable rear support in a roller-delayed platform.

The pistol operates using PTR’s proven roller-delayed blowback system, providing a smooth recoil impulse and consistent cycling with full-power 7.62×51mm ammunition. A heat-treated, full-auto profile bolt carrier supports long-term durability and reliable 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 wear protection.

The 12.5″ stress-relieved, tapered-contour barrel features a 1:10″ right-hand twist and is threaded 5/8×24, supporting common muzzle devices. An extended PTR HG5M mil-spec anodized aluminum M-LOK® handguard provides ample mounting space for lights, grips, and other accessories, while a 6.9″ steel Picatinny rail supports optic mounting without compromising balance or handling.

With the brace extended, the K3P BR measures approximately 37″ in overall length and collapses to approximately 34.25″. The pistol weighs 9.6 lbs unloaded and feeds from 20-round aluminum magazines. The trigger pull is set between 9–10 lbs for consistent operation. Each K3P BR ships in a polymer case with foam padding and includes one magazine and a trigger cable lock.

Within the PTR lineup, the K3P BR occupies the extended-barrel braced pistol segment—offering increased ballistic performance, modular mounting capability, and roller-delayed reliability in a factory-built pistol configuration.