The PROTECTOR series AR carbine and pistols from Wilson Combat have been designed from the ground up to offer true rifle performance in a Tactical AR package. The heart of every PROTECTOR is our Wilson Combat Match-Grade precision button rifled barrel-renowned in the firearms community as one of the most accurate AR barrels on the market that is matched up with a premium bolt carrier assembly. This Protector Carbine is chambered in .300 HAM'R. The 300 HAM'R cartridge was developed with one thing in mind, OPTIMAL TERMINAL PERFORMANCE. It offers near .308 Winchester effectiveness on game animals with amazing accuracy and low recoil in the lightweight and compact WC15 platform. Terminal performance testing on over 2000 Texas feral hogs and various game animals as large as 800 pounds has proven it to kill much more effectively than the 6.5mm Grendel, 6.8mm SPC, 7.62x39 or 300 Blackout.