he APC PRO series brings a new level of performance and adaptability to the APC platform. All models feature a dual auto-folding, non-reciprocating charging handle, improved lower receiver ergonomics including a side positioned bolt hold open/release, removable M4 compatible grips, and Magpul® M-Lok® accessory slots.
In addition: APC9 PRO: Compatible with standard B&T, Glock and SIG P320 receivers.