South Carolina's PTR Industries produces fine quality firearms in multiple calibers for a variety of applications across the shooting disciplines. Their standard PTR Rifle began in 2002 as a clone of the HK line of roller-lock weapons from Fabrica Militar of Portugal. Today, PTR has moved beyond clones to create a truly modern, adaptable rifle made entirely in the United States. The PTR-91 KFM4R has a tactical forearm that's machined from military spec. hard-anodized aluminum with three 6" 1913 rails on the handguard at the 3, 6, and 9 o'clock positions for accessory mounting. The rifle uses a delayed blowback roller-lock system that's quick-acting and dependable. A 16" match grade bull barrel and a 6-position collapsible stock ensure that the PTR-91 keeps pace with all the top AR designs on the market. A H&K navy-type polymer trigger group, a flash hider, a welded top scope mount, and a 20-round magazine complete the package.