Kingman MR1
Proto 14" 1-Piece Barrel
Kingman IPI Electric Grip
Shocktech LPC
Lapco X-Chamber
Revvy X-Board
Strengths:
Adds a nice look to the marker
Weaknesses:
Threads don't fit
Not really needed
Review:
This is a nice addition for any compatible marker. It doesn't really make a big difference in gas efficiency though. This was one of my last upgrades, and i can honestly say that your gun can function without this. I have it on my MR1, it does save me a couple shots though. It's better used in conjunction with an expansion chamber if one of those people who like to maximize on efficiency.
Conclusion:
If it had more function, i'd give it a 10. But since it does save a little gas and give a nice look, it gets a 9