The KelTec R50 5.7x28mm carbine in black (brand part no. R50BLK) is a side-folding, 50-round rifle with a 16.1-inch barrel threaded 1/2×28. R50 stands for Rifle, 50 rounds, and it is the carbine version of the same platform as the P50 pistol. Adjustable iron sights come standard, and a long Picatinny rail up top accepts just about any optic. This KelTec carbine is well suited to small game hunting, bullseye shooting and range days.

Key Specifications

• The caliber is 5.7x28mm, a high-velocity, low-recoil cartridge.
• The barrel is 16.1 inches long and threaded 1/2×28, ready for a suppressor or muzzle device.
• Capacity is 50 rounds, giving a large on-board ammunition supply.
• The stock is side-folding and ambidextrous, resting along either side of the grip when folded.
• The sights are adjustable iron sights with windage and elevation adjustment.
• The receiver has over 7 inches of Picatinny rail on top for optics and accessories.
• About 2 inches of bottom rail space is available for a light or grip.
• A QD sling cup above the magazine release accepts a single-point sling.
• The AR-style charging handle gives smooth manipulation.
• The color is black.

Frequently Asked Questions

Is the R50 barrel threaded? Yes. The 16.1-inch barrel is threaded 1/2×28 for suppressors and other muzzle devices.

How many rounds does it hold? The R50 holds 50 rounds of 5.7x28mm.

Can I mount an optic on it? Yes. The receiver has over 7 inches of Picatinny rail on top, and there are adjustable iron sights as well.

Buy the KelTec R50 5.7x28mm Carbine, Threaded 1/2×28 Barrel, Folding Stock, Black, 50-Round

The R50 pairs a flat-shooting 5.7x28mm cartridge with a 50-round supply and a folding stock for easy carry. A threaded barrel and a generous rail make it ready for accessories. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and browse our semi-auto rifles.