Custom AR9 - This setup is THE flattest softest recoiling AR9 setup possible, and genuinely rivals that of the legendary MP5, but with modern ergonomics and features.

9mm CMMG RDB 5.3" Barrel CMMG RDB BCG W/two bolts, 9mm bolt for unsuppressed (low pressure) use, and .40 S&W bolt for suppressed (high pressure) use. Yes it works with 9mm.

12" freedloat Mlok YHM handguard

Standard AR15 upper modified to accept double feed magazines

New Frontier Armory S-9 Lower (uses CZ Scorpion magazines)

A5 length buffer tube with A5 length Kynshot hydraulic buffer and Tubb flat wire spring

Drop in flat single stage trigger

Premium ambidextrous/oversized controls

This system requires the use of Manticore Arms magazines with steel feedlips in order to clearance the CMMG style bolt, which is different from a regular AR9 direct blowback bolt. I am including 2 magazines.