Geissele Automatics

Standard Lower Parts Kit

The Geissele Standard Lower Parts Kit includes all the internal parts necessary to complete or rebuild your lower receiver. This quality mil-spec kit features an improved safety detent and the...

Super 42 Braided Wire Buffer Spring & Buffer Combo - H3

The Geissele Super 42 Spring was designed to improve the function and reliability of your AR-15 pattern rifle. Its unique spring design uses three independent strands of wire, just like the German...

Suppressor Alignment Gage (SAG)

The Geissele Suppressor Alignment Gage (SAG) is a precision gage used to verify the alignment of a suppressor to the bore of a firearm barrel. It is important to understand that the length of the...

Ultra Duty LPK

The 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. This top-tier LPK features...

Upper Receiver Group w/ Improved (Complete) Near Clone - 5.56mm

For more than 50 years the famed silhouette of the M16/M4 has only had one major and several minor changes. With the advent of the USASOC URGI, that quintessentially American silhouette has changed...