ACR 7.62x39 lower receiver made of 6061 Aluminum.  In development now.  Estimated release, Mid-Late March! Features billet 6061 Aluminum construction for the outside body with steel reinforced areas where the magazine makes contact for added strength. Removable magazine inserts allow the use of one lower for multiple different calibers. Includes 7.62x39 magazine insert, 5.45/5.56 magazine insert Proprietary takedown pins and mag catch Lightweight trigger box Assembly/Disassembly wrenches Includes all proprietary components needed for function.  Preorder price will receive a discounted rate since these are getting significant updates which is delaying production.   *Released price will be slightly higher due to production costs.* Updated 10-7-21 Updated 2/26/22 Magazines and calibers that have passed testing (more will be added to the list as they pass testing) 7.62x39 Pmag Gen2 7.62x39 Pmag Gen3 Arsenal Circle 10 5.56