{"product_id":"lantac-m-spec-bcg-223-556-blk-nitride","title":"LANTAC M-SPEC BCG 223\/556 BLK NITRIDE","description":"Not every customer has the requirement or budget for a fully enhanced top of the line AR15 accessory. Many users simply need a quality milspec component supplied at a sensible price. - M-SPEC is a range of AR15 accessories and components that follow the military specification in dimensions tolerances and materials with the addition of a few upgrades and enhancements to raise the performance standard of the product above the 'milspec' rating while retaining the same economical price point as traditionally offered by other providers. - Offered in both 5.56\/.223 and 7.62\/.308 Caliber the Lantac M-SPEC 5.56\/.223 BCG is precision machined to milspec dimensions and tolerances. The carrier is full auto style with increased mass and is manufactured from 8620 steel case hardened and hard turned\/ground so that internal dimension are exact to mil specifications. It is then QPQ Nitrided rather than Type M Phosphated to give increased corrosion resistance durability and performance. - The Bolt is machined from Carpenter 158 or 9310 shot peened and hard turned as per the military spec. - Each BCG is further fitted with a Lantac CP-R360 domed head cam pin which are precision machined from 17-4PH stainless steel hand polished and hardened to H900 condition this further reduces friction and wear within the upper receiver. - The M-SPEC line of products are ideal for budget builds where quality and reliability are still paramount. - 8620 Carrier Heat Treated Hard Turned \u0026amp; Ground. - MPI Carpenter 158 or 9310 Bolt Shot Peened Hard Turned \/ Ground. - QPQ Nitride Finish. - CP-R360 Domed Cam Pin - Shot Peening is conducted with S110 shot Established by Almen Gage A-2 strip .006 -.008 - Lifetime Warranty. - Made in the USA.","brand":"LANTAC USA LLC","offers":[{"title":"Default Title","offer_id":46196828536971,"sku":"LANTAC MSPECBCG223556","price":170.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/8581\/8251\/files\/taktactical-placeholder-coming-soon_58864648-e54f-42b0-b63e-249a0f314ccb.png?v=1780682317","url":"https:\/\/taktactical.com\/products\/lantac-m-spec-bcg-223-556-blk-nitride","provider":"Taktactical.com","version":"1.0","type":"link"}