Smith & Wesson M&P AR-15 Customizable Lower Parts Kit Black

SMITH & WESSONA(R) M&PA(R) The M&P AR-15 Rifle Cuctomizable Lower Parts Kit is the perfect choice if you want to build a custom AR-15. This kit provides all the parts generally used in an AR-15 build but allows the flexibility to add popular common after market upgrades. KIT INCLUDES THE FOLLOWING PARTS: Bolt Catch Hammer Pin Takedown Pin Trigger Pin Bolt Catch Plunger Buffer Retainer Takedown Pin Detent Magazine Catch Bolt Catch Roll Pin Buffer Retainer Spring Takedown Pin Detent Sping Magazine Catch Button Bolt Catch Spring Pivot Pin Detent Spring Selector Detent Spring Magazine Catch Spring Pivot Pin Pivot Pin Detent Selector Detent Selector