Ar-15 Bolt Carrier Group .224 Valkyrie

Beyond "Mil-Spec" the NEMO AR bolt carrier group is perfect for those who are looking for assured reliability, with the best in coating technology. The bolt carrier group is the heart of your rifle. Selecting the best construction and coatings will ensure that you have lasting reliability and accuracy. .224 Valkyrie designation laser engraved onto bolt Bolt face diameter and extractor designed specifically for the .224 Valkyrie cartridge Case hardened 9310 steel bolt, nickel boron coated,