F dROCK RVR ARMS LWR RCVR PARTS KIT $63.99 AR0120 show more like this Calculated in cart GunZoneDeals F Rock River Arms AR-15 Lower Receiver Parts Kit - Single Stage Trigger $70.00 AR0120 show more like this Calculated in Cart Primary Arms F NO AR0120 $70.58 AR0120 show more like this Firearms $18.45, Free over $500 Shooting Surplus F Rock River Arms Lower Parts Kit Single Stage Trigger (LPK) $74.00 AR0120 show more like this Right To Bear F Rock River Arms LAR-15 Standard Lower Receiver Parts Kit, Single Stage Trigger, Standart 2A Grip, Black, One Size, AR0120 $89.99 AR0120 show more like this Free Shipping on most orders over $49 Optics Planet F Rock River Arms LAR-15 Standard Lower Receiver Parts Kit, Single Stage Trigger, Standart 2A Grip, Black, One Size, AR0120 $89.99 AR0120 show more like this Dvor