FM Products .45 Caliber Bolt Carrier Assembly Black. 45 Caliber Bolt Carrier Assembly. Formulated by using several of the most extremely robust and dependable substances in existence these Bolt Carrier Groups from FM Products provides you with an item which will give years of consistency. FM Products has been developing top quality products for a very long time and the FM Products .45 Caliber Bolt Carrier Assembly is their way of revealing exactly how much they are concerned. At OpticsPlanet we ensure that it is our responsibility to obtain the perfect solution for all of your requirements and featuring the FM Products .45 Caliber Bolt Carrier Assembly is one thing that we are delighted to offer. Specifications for FM Products .45 Caliber Bolt Carrier Assembly: Manufacturer: FM Products Color: Black Caliber: .35 Remington Gun Make: AR Platform Gun Model: AR-15 Hand: Right Package Contents: FM Products .45 Caliber Bolt Carrier Assembly What firearm models does the manufacturer say FM Products .45 Caliber Bolt Carrier Assembly is compatible with? The manufacturer says that FM Products .45 Caliber Bolt Carrier Assembly is compatible with AR-15FM Products FMP-45BOLT: .45 Caliber Bolt Carrier Assembly Black