HK SP5K Bolt Group - Suppressed - Full Auto - Spec

RCM HK SP5K Spec Suppressed Bolt Group- Full Auto

The RCM SP5K Suppressed bolt group is expertly engineered for operating in full auto while suppressed. Although designed as a full-auto bolt group, it also functions perfectly in semi-auto receivers. This makes it the ultimate choice for enthusiasts desiring reliable cycling without swapping locking pieces. This drop-in bolt group is specifically crafted for SP5K's but fits MP5K clones without the rear full-auto carrier block.

***Always check bolt gap when swapping locking pieces. When exchanging a complete bolt group, confirm the BCG bolt gap is in spec.  If necessary, exchange rollers to achieve the appropriate bolt gap.

Compatible With:

• HK SP5K/MP5K
• PTR 9KT
• In spec clones and custom builds.