Milling your 8 gram mags into 12 gram

Hdp-50 6” barrel threaded

6” 682 extension 7/8-20 threads silver or black finish

Fsc 35 joule kit RMR-tac light 12 gram mag and body kit $800 value

Fsc body kit made with ABS

Umarex HDP-50 magnetic detent

Fsc Assault carbine kit

X-68 mag extender for 8 rounds with longer spring

Vks M4 125+ joules double the power of all the others

10 ci 3000 f/s hpa tank bronze ghosted