Seekins is excited to announce the expansion of the SP10 line. The Seekins iMRT-3 upper receiver and SP3Rv3 handguard provide a rigid, no-flex platform for repeatable, extreme accuracy under any condition. The SP10 lower receiver offers full ambidextrous controls allowing effective, efficient manipulation of the weapon from either side. Other features include: 5R match grade stainless steel barrel, low profile adjustable gas block, Timney Competition Trigger, ATC Muzzle Brake and ProComp 10X stock. Match Grade Barrel Adjustable gas block ATC Muzzle Brake