KAK Industry K-Spec Enhanced Low Mass Bolt Carrier Group 5.56x45mm/.300 AAC Blackout, Gold

KAK K-SPEC Low Mass AR15 BCG Dual Ejectors Down Vent Sand Cuts Anodize and NP3. This is considered a consumable part AR's with dialed in gas and buffer systems will prolong the life of this item Recommended gas systems- Mid length Rifle Length or similar. Aluminum carrier with Satin Gold Anodize (milspec buffer anodize color) C158 NP3 Dual Ejector Bolt with NP3 Cam pin. "How long does it last" The original unit is still being tested everyday in a 12.5" mid length gas upper with high back pressure suppressor mostly on full auto no abnormal wear so far. Patent Pending - The K-SPEC BCG combines multiple key features focused on increasing the reliability of your AR15 style firearm no matter if you are running suppressed or unsuppressed and regardless of conditions. The K-SPEC is a truly plug and play BCG that will accommodate whatever configuration your mission requires. For those running suppressed the K-SPEC requires no additional tuning or tweaking of the gas or recoil systems to run reliably. Like all KAK BCGs the K-SPEC is machined to the M16 full auto profile. Reduced Peak DB Report - When used in conjunction with a silencer the gas redirect produces a quieter report Slotted Angled Carrier Rails - For enhanced functionality in adverse and rugged conditions such as sand mud dirt and grime. These rail cuts are designed for debris disbursement resulting in ultra-high functionality in the toughest conditions including suppressor fouling and foreign contaminates. Strategically located angle cuts in the rails result in fouling and debris being moved into noncritical areas that are not in contact with the receiver and do not affect the function of the firearm. aka sandcutter Downward Gas Vents - In an effort to reduce the amount of debris and gas vented towards the shooters face the two standard gas relief ports have been relocated from the ejection port side of the K-SPEC carrier and placed underneath in the magazine feed lip channels. Two additional emergency relief ports have also been added to the bottom of the carrier to mitigate structural damage in the event of a case head separation. Testing has shown that venting the gasses through the magazine well has no negative impact on the feeding or function of the magazine nor ammunition and any added heat is negligible. Dual ejectors - The K-SPEC dual ejector system uses mil-spec ejectors and springs that require no proprietary parts. Ejector holes are centered on the lugs to avoid any reduction in strength of the bolt. The dual ejector system increases the ejection reliability and adds consistency to the ejection pattern. KAK Industry has been manufacturing dual ejector bolts for the AR10/LR308 platform for over a decade and has used that experience to create a durable and reliable dual ejector system for the AR15 platform. Specifications for KAK K-SPEC Low Mass AR15 BCG Dual Ejectors Down Vent Sand Cuts: Manufacturer: KAK Finish: Hard Coat Anodize Gun Make: AR Platform Gun Model: AR-15 Hand: Right Bolt Material: C158 Steel Carrier Material: 7075 Aircraft Grade Aluminum Features of KAK K-SPEC Low Mass AR15 BCG Dual Ejectors Down Vent Sand Cuts: Designed to function reliably in the toughest conditions Optimized for both Suppressed and Un-suppressed use All uses All Conditions Dual Ejectors for enhanced reliability Angled Carrier Rail Cuts for flawless function in adverse conditions and prolonged suppressed use Downward Gas Ports to reduce gas blowback to shooter Full Auto Profile Permatex added between Gas Key and Carrier Mating Surface Carrier- 7075 Aircraft Grade Aluminum outside rails bolt runs and gas bores ground to .0002 tolerances Satin Gold Anodize Finish Bolt- C158 steel outside diameters ground to .0002 tolerances Shot Peened and MPI test NP3 finish Firing Pin- 8740 steel Swiss turned heat treated precision ground chrome plated Cam Pin 4140 steel Swiss turned heat treated NP3 finish Extractor- 4140 steel fully machined Phosphate coated Extractor pin- S7 tool steel ground heat treated Ejector- S7 tool steel ground heat treated Gas key 4130 steel heat treated Chrome finish secured with T25 torx fasteners torqued to spec staked with hydraulic staking machine Package Contents: KAK K-SPEC Low Mass AR15 BCG Dual Ejectors Down Vent Sand Cuts KAK 425-0510-002: K-SPEC Low Mass AR15 BCG Dual Ejectors Down Vent Sand Cuts Anodize and NP3