Lower Parts Kit Ultra Duty Desert Dirt Color Color:Desert Dirt Color The SSM is compatible with

The SSM is compatible with the Surefire M300A

Mounted to your AR-15 upper using the updated version of the proven Geissele Barrel Nut design

MCH allows the user to carefully select from an industry-first (and Patented) Adjustable Negligent Discharge protection system

Make it yours

Lower Parts Kit Ultra Duty Desert Dirt Color Color:Desert Dirt Color The SSM is compatible withThe Geissele Ultra Duty Lower Parts Kit is made for the most demanding operators and includes all the internal parts necessary to complete or rebuild your lower receiver. Key components are made from Stainless Steel, which offers a much longer life span and a much lower chance of rusting or failing in extreme conditions or under heavy use. The Geissele Ultra Duty LPK includes our Maritime Bolt Catch, famous for its aggressive texturing and extended