secondofangle
Well-known member
- Joined
- Dec 25, 2015
- Messages
- 307
I figure the Uzi guys will know as much about this as anybody, but my question relates to HK. I got an aftermarket RCM bolt for an SP5K I'm going to use as a sear host. The website says it's "tungsten filled" and CNC machined and all that so I figured it would be virtually identical to an HK bolt but it's notably lighter at 5.4 oz versus 5.8 oz for the HK, and that's with the latter missing the trip ramp material so the difference is probably a little more if the HK bolt were a FA carrier. Doesn't sound like much but we're talking 7-8% less weight and I know this can affect rate of fire and function, etc.
Anybody have general comments or specific knowledge/experience about this?
Anybody have general comments or specific knowledge/experience about this?