Bolt assembly for the MF-50S and MF-50M upper receivers. Includes the proprietary Mechanically Assisted Pin Safety (MAPS) as well as the hammer drop safety. Comes as a complete assembly including the bolt handle and includes head spacing at the McCutchen Firearms factory.
Accuracy International 5-Round Magazine is a spare magazine for MF-50M models, AI and AICS rifles.
McCutchen Firearms MF-50 Firing Pin
MF-50 Hammer, Spring and Retention Pins
Lower Parts Kit for the 50 BMG Uppers. Everything you need to outfit the stripped lower of your choice.
The McCutchen Firearms small parts kit contains all the spare parts for any MF-50 series bolt head.
McCutchen Firearms' MF-50 series features a large bell grip bolt handle, for greater comfort and operater ease.
The DPMS AR-15 rifle length buffer tube made from Mil-Spec 7075 aluminum and features a matte black hardcoat anodized finish.
KeyMod Nut and Screw (Set of 2)