Brand new custom built AR9 (Glock Mags) for sale.  This build has an Angstadt Arms lower with a Triggertech trigger, anti-walk pins, and SBA3 brace.  The upper has a side charging handle (non-reciprocating) and a blast mitigator muzzle device.  Will include a Holosun 510C Green reticle (dot and circle) optic for $300 as a package deal.