RCM HK STYLE LOCKING PIECE #15/65 DEG. 5.56/.223
The #15 LP is the correct locking piece for the HK53 and several other custom build applications. The locking piece is the timing mechanism that a delayed roller lock firearm uses to tell the firearm when to unlock and cycle. Having the right degree or “timing” is critical in the function and cycling of the HK roller lock firearm such as the HK53.
#15 Locking Piece – 65 Degree
Perfect for HK53, HK33K & other HK style custom builds
7 in stock