Barret REC7 DMR (Designated Marksman Rifle) 5.56 NATO 18" Barrel Flat Dark Earth Reciever
The REC7 combines the familiar ergonomics of the AR style rifle with a revolutionary short stroke gas piston operating system to create a rifle that runs cleaner and more reliably than traditional designs.
Unlike direct impingement firearms that release gas into the upper receiver, the REC7 piston vents excess gas forward at its patented chrome-lined, fluted gas block, resulting in cleaner, cooler, lower-maintenance operation. The black nitride coated gas block features two positions for suppressed or unsuppressed shooting, ensuring reliability of the shot and helping to avoid unnecessary wear from over speeding the action. It also allows the user to access the piston assembly for maintenance via the front of the rifle without requiring removal of the hand guard or barrel.
The one-piece 17-4 stainless piston interfaces with a strike face that has been machined into the monolithic, anti-tilt bolt carrier.
Reengineered and reinforced for piston applications, the TB-41 DLC coated, anti-tilt, full auto bolt carrier is machined from a solid block of 8620 steel with an integrated piston strike face. It’s magnetic-particle inspected and proof tested before leaving the factory. Both upper and lower receivers are forged from 7075-T6 aluminum, Type 3 Class 2 hardcoat anodized for durability, then finished with Cerakote for a perfect color match. The upper receiver and barrel extension feature M4 feed ramps for improved reliability, while the lightweight, free float handguard features a full-length M1913 Picatinny top rail with Magpul M-LOK accessory mounting slots at the 3, 6, and 9 o’clock positions.
The information below comes from our Gun Caliber Dictionary and is for
general reference only. It does not describe the specifications of this
particular item.
The 5.56X45mm NATO cartridge was designed by James Sullivan, a member of Eugene Stoner's engineering team that developed both the M16 rifle and its original cartridge. The 5.56X45mm NATO was adopted by the U.S. military in 1964 and by NATO in 1980. With bullet diameter of .224-inch, the original M193 military cartridge used a 55-grain bullet at 3250 fps; the current M855A1 cartridge, developed by FN, uses a 62.5-grain bullet at 3020 fps, offering greater range and better penetration. The civilian version of the 5.56X45mm is 223 Remington; the cartridges are dimensionally identical but military chamber dimensions and specifications for military brass are different. It is considered safe to use 223 Remington ammo in a 5.56X45MM NATO chamber, but not a good idea to use 5.56X45mm ammo in a rifle specifically chambered for the 223 Remington. Although the stopping power of .22-caliber bullets remains controversial the 5.56X45mm has served well in now multiple generations of M16 rifles.
—
Craig Boddington
