KAK Industry K-SPEC Features The KAK Industry K-SPEC bolt carrier group relocates its two standard gas relief ports from the ejection port side of the carrier into the magazine feed lip channels directing gas and debris away from the shooter s face during firing. Two additional emergency relief ports are machined into the bottom of the carrier giving excess pressure a path to vent in the unlikely event of a case head separation. Testing has shown that venting gas through the magazine well has no negative effect on feeding or function with any added heat considered negligible. Strategically placed angle cuts along the rails sometimes called sand cuts move fouling and debris into noncritical areas that do not interfere with the firearm s operation. Machined from 8620 steel and finished with a chrome lined bore and an NP3 coating the K-SPEC resists wear and fouling while promoting smoother more reliable cycling over thousands of rounds. This enhanced finish combination makes the carrier particularly well suited to suppressed fire where fouling and gas blowback are typically more pronounced. The full auto bolt carrier profile ensures broad compatibility across a wide range of AR-15 style lower and upper receiver combinations. Built as a genuinely plug and play upgrade for any mission configuration the K-SPEC Bolt Carrier is available for sale at GrabAGun. KAK Industry K-SPEC Specifications Manufacturer: KAK Industry Model: K-SPEC Type: Bolt Carrier Color: Silver Material: 8620 Steel Finish: NP3 Coated Chrome Lined Handedness: Right Hand Weight: 11.5 oz Available At: GrabAGun