REMINGTON R51 9MM+P SEMI-AUTO HANDGUN

**GUNS WILL NOT BE IN FOR 1 TO 3 MONTHS** The layout of the Remington R51 is similar to the Walther PPK pistol in the use of a stationary barrel and recoil spring surrounding the barrel. However, the notable feature is the use of a locking breech block within the slide utilizing a delayed blowback or "hesitation-locked" action originally developed by John Pedersen.[4] When the pistol is in battery, the breech block rests slightly forward of the locking shoulder in the frame. When the cartridge is fired, the bolt and slide move together a short distance rearward powered by the energy of the cartridge as in a standard blowback system. When the breech block contacts the locking shoulder, it stops, locking the breech. The slide continues rearward with the momentum it acquired in the initial phase. This allows chamber pressure to drop to safe levels while the breech is locked and the cartridge slightly extracted. Once the bullet leaves the barrel and pressure drops, the rearward motion of the slide lifts the breech block from its locking recess through a cam arrangement, continuing the operating cycle. One can insert a dowel into the barrel and push on the breech block. It will only move a fraction of an inch and stop against the lugs. Only manually retracting the slide or firing a cartridge opens the gun. Because the action combines a locked breech and blowback operation, the R51 can handle more powerful cartridges and greater pressures than a straight blowback firearm, yet offers a small profile without the size and weight penalty of other locking systems.[4] Another advantage is that a lighter recoil spring can be used, making the slide much easier to manipulate.[4] The design allows the recoil spring to be placed around the barrel, reducing the pistol's overall profile.[4] Lighter operating parts and longer lock time provide less felt and actual recoil.[4] The R51's extremely low bore axis gives less muzzle rise which also lowers perceived recoil, while the fixed barrel improves accuracy and simplifies construction.[4] Overall, this system is lighter than a blowback, simpler than any recoil or gas-operated locked breech mechanism, and has less recoil than either of the other systems. The Remington R51 uses an internal hammer with a built-in drop safety, and features a single-action trigger.[5] There is a slide stop on the left side of the frame. The primary safety is a grip safety incorporated into the rear of the grip, which must be depressed by the user's grip hand before the pistol will fire.[5] The trigger guard is undercut to allow a higher grip on the frame, reducing muzzle flip and perceived recoil.[4] The grip frame has a 20-degree grip angle designed for natural point shooting, and is made from aluminum alloy with checkering on the front strap.[4] The gun comes standard with thin aluminum grip panels are held on with conventional screws, and the company plans to offer optional rubber and rosewood grip panels for users desiring a wider, more hand-filling grip.[4] The magazine release is ambidextrous and the magazine is a conventional, single-column design with a polymer floorplate and a maximum capacity of seven (7) 9mm cartridges.[4] The slide of the R51 is constructed of forged carbon steel with a matte finish, while the frame is made of aircraft grade aluminum alloy.[5] The barrel is constructed from 416 stainless steel