RCM MP5 40/10 High Impulse Locking Piece #25

MP5 40 & MP5 10mm High Impulse Locking Piece Marked #25

Made in the US from an enhanced material and heat treated to factory specifications. Each US-made MP5 40/10 60-Degree Locking Piece is used for high-impulse ammo commonly found in +P Or +P+ ammo. Each locking piece is needed to cycle these hot loads without excessive recoil or impulse that can cause receiver dimpling or damage from too much energy during cycling. When using hot loads, the #25 Locking Piece should be used, and the low # 24 Locking Piece should be used for standard loads with low to average impulses. 

Compatible With:

• MP5 .40
• MP5 10mm