Description
22mods4all presents our 40 Caliber assembled upper receivers!
All uppers have a blow back gas system. All of these assembled uppers come in pistol lengths and one carbine length. Our 40 caliber uppers combine the popular performance and low cost of a high quality, compact and reliability of a short barrel. All products are made in the USA from our lightweight free floating MLOK handguard to the slick side upper receiver. With this MLOK free floating handguard, it will allow you to attach all your favorite accessories and give you a comfortable grip and great feel while shooting at the range, competitions, etc. Our bolt carrier group and upper receivers for the 40 caliber is compatible with Last Shot Hold Open and will be compatible with a AR15 MILSPEC metal lower and a dedicated 40 Caliber lower receiver.
