1. JSE 16" Wilson Arms 9mm Upper
2. Bolt Carrier Group - 9mm Ramped CMMG Bolt Assembly
3. ProMag AR-15 9mm Magazine Adapter Block
4. 9mm Heavy Buffer. 9mm AR buffers weighs 5oz vs. carbine buffers which weigh 2.9oz. The heavier buffer provides additional resistance to slow the rearward speed of the 9mm AR blowback bolt system.
Also provided below are several pictures taken during the 9mm Mag Block installation.