Sig Sauer P320 Rear Slide Cap.
 
This OEM factory standard rear slide cap is manufactured from steel and is finished in black nitride.  It is compatible with Sig Sauer P320 pistols chambered in 9mm, .40 S&W, .45 ACP, and .357 SIG.
 
We cannot accept coupons or discounts for this or any other OEM part.