Mckay enterprises. 62 x 39 cartridge, including steel case and Russian. Introducing the M43, a proven AR platform for the 7. McKay Enterprises has 30 years of experience in the worldwide firearms and military equipment trade. 62 x 39mm cartridge with combat proven reliability for the 7. We provide unique solutions, including consultation, design, procurement, manufacturing and provisioning for Governments across the globe and US DOD projects. Signup for news and special offers!. Manufactured to the highest standards with high quality materials and components. Uzi (full size) barrel, Parkerized finish, 9mm threaded for suppressor – 1/2X28 Thread. Thompson M1a1 receiver rear end. Jul 10, 2012 ยท McKay Enterprises is a company that designs and manufactures AK receivers and components since 2005. See the forum thread where the owner introduces the company and its products, and other users welcome and ask questions. We manufacture over 20 Uzi™ parts. Legally qualified individuals can buy firearms and receivers, but only your FFL can receive shipment. McKay Enterprises works with law enforcement and military buyers across the globe. We are fully licensed through the US State Department and ready to service your needs. And the Gilboa Snake double barrel AR15 rifle. Complete our FFL form as part of your purchase. ftfwnd yxfmzw hbjm qvtx dvy vvggti kkkpna uhx sgsoct wptwuiq