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NPDriver

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    Gerald Wilson

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Looks for Match (2/11)

  1. The price is the exact same amount I paid for my CMMG RDB bolt & barrel set. Maybe if they knocked a hundred off the MSRP it would be worth a look?
  2. Will do Les. So far I've added a LaRue MBT-2S trigger, great 2-stage trigger for under $100, a PWS enhanced buffer tube/QD endplate w/ locking castle nut. The anti-tilt lip on that tube really helps. The BCG is already started into the tube when you close it up. Got their PCC comp too, nice piece. I also used a POF roller cam pin, my goal was to keep this thing as smooth cycling as possible. Got a Geissele charging handle for it a few weeks ago. Next is a Kynshot hydraulic buffer, I'm told the #5005, AR10 model is the best for this application. I'll get around to it sooner or later, just got back from vacation & those paychecks tend to be a little light, but I'll post here with my results. Good luck with the fine tuning! Jerry
  3. Yeah, I never did anything with mine either. The only time I had failures to eject was when using a brass catcher. Still gonna open it up though or get one of those PCC specific upper recievers with the oversized ejection port. Been eyeballing this one myself but there are a few out there. https://www.rainierarms.com/arms-republic-9mm-stripped-billet-upper-receiver/
  4. It's always easier to remove material than add to it, so just go easy once you get close. Did you open up your ejection port at all?
  5. Yes sir! You have it running so obviously it's close. I wouldn't touch the mags myself, I wouldn't want any variation between any of my magazines. Give the release a little shave, you know it's close if it's cycling. What lower are you working with?
  6. Another vote for Foxtrot Mike's here. I bought one of their build kits (sadly discontinued) on black Friday of last year and stuffed a CMMG Guard bolt & 8" barrel in it, so I had a good look at everything close up while putting it together, then tearing it apart to get the fitment right. I didn't know what to expect when I ordered it but for $199, what the hell right? When I was at the local shop getting it transferred I started digging through the parts. I was expecting some machine marks and horrible purple anodizing. At that time I had only seen grainy B&W photos. That's not what showed up. Nice deep dark black anodizing, nitride coating on the parts kit was all good, could not find a single flaw in the finish. I got it home where my previously ordered CMMG barrel & bolt were already waiting (another black Friday score at $299). Everything fit together like a glove. Tension screw to take up any play but even without receivers fit together tightly. I've been running it for about 9 months now. I've never enjoyed any firearm as much as I do this thing. It's not a side charging model but I'm not sure I would like that on an 8.5" handguard. Too busy, not enough real estate. I put a PWS buffer tube & comp on it, LaRue trigger, SBA3 brace and scored a Vortex SPARC on Ebay for $85. A little over half the cost of a top-tier Banshee and that's with the optic and a set of BUIS. Great quality products and excellent customer service! I think the low price scares people away but compare their side by side to a PWS PCC and see if you notice any similarities. Both built in Boise.. Both companies worked together on the Brownells BRN-180..
  7. I think it may depend on the manufacturer, but I can only speak to what I know. I have a Foxtrot Mike's build kit, it used to be sold on Primary Arms but they discontinued it. Upper, lower, 8.5" handguard & all the springs, detents & pins were included. It ran fine when I put it together if you inserted the mag on an open bolt, so I knew right off I didn't need to remove much material. I talked to people using different brand lowers and they said that they needed to remove as much as 1/8" from their magazine release. I was nowhere near that. I just scratched a reference line on my mag release where it looked like I needed to be, clamped a file into my vise, then just dragged the release along the file making sure I was holding it as level as I possibly could. When I got close to my witness marks I checked the fit, then wrapped the file with emory cloth to slow down the amount of material being removed. I just did this & kept checking the fit until it cycled smoothly. It doesn't need a lot of contact to scoop a round off the top of the mag. I may have removed around 1/16" of material altogether. It didn't take a lot, just some patience and fitting. I could have taken it to my friend's and had him mill it off but I felt confident I could just do it by hand if I went slow and held it steady. Like I said, it ran but if you tried to charge it on a full mag, the lugs on the bolt wanted to rip the round off the top of the magazine and gouged the s#!t out of the brass. I never touched any of my magazines or followers and I've run Glock mags, Magpul 21 rounders & a KCI 50 round drum. Smooth as butter!
  8. I just filed a little material from the top of my magazine release rather than trim the magazines. A normal blowback bolt doesn't have an actual bolt with lugs to clear, so I found that lowering the mag in the magwell made it much easier to charge if you inserted the mag on a closed bolt. The lugs weren't gouging the hell out of the brass on the backstroke either.
  9. Foxtrot Mike's lower has a mag stop milled into the side of the magwell much like the Guard lower. That along with the LRBHO design where what sold me on their lower. Their excellent customer service was also a factor. I was asking some questions about the mag stop, (it was hard to see in photos) on their Facebook page and had the VP of the company send me a friend request so we could communicate more easily through messenger. Yes, the top of the mag release needed a bit of material shaved off to get the magazine to the correct height. I just filed it away a little at a time until I got it perfect.
  10. I finally got around to getting my FM Products mag release filed down to the right height. I must have had the mag release in & out a dozen times. It's cycling like butter at this point. It really didn't take a lot material removal, in fact I was worried I'd take too much off and have to build up with some weld & start over. Looking at the distance between my mag stop and the flat spot on the magazine I'm only looking at a spacer slightly thicker than 1/16". I was thinking maybe a piece of that rubberized refrigerator magnet. Easy to cut, holds its shape and already has adhesive on it. LRBHO still works on every mag I've finished. I was concerned I might have to modify it also after lowering the magazine height.
  11. Looks to be a Strike Industries endplate & castle nut. Hey MemphisMechanic, didn't you end up swapping out the Colt lower for a KE Glock lower?
  12. I'm thinking of something similar, but coming in from the other side. Check out a PDQ bolt catch. I'm not a big fan of their design though. I think I can do better and my FM products lower uses a proprietary bolt catch that bolts to their LRBHO. https://www.odinworks.com/product_p/acc-pdq.htm
  13. This is where I think CMMG dropped the ball with the Guard and the Banshee. If you don't need the ejector in the lower, you could move the bolt catch at least .75" closer to the magwell fairly easily. Compatibility with some billet uppers would be the only problem I could think of? It doesn't take a lot of force to strip a round out of a Glock magazine.
  14. I've been meaning to ask you if you use any of the CMMG weights for the bolt itself. I ordered a LaRue MBT trigger yesterday. Now all I need is a Kynshot buffer, .308 spring, and I've been thinking about a POF or 2A Armament AR-10 length buffer tube. I could probably stuff a wave spring covered by a quarter in the extra .75" of the tube, (if it even gets that far) and the little extra length of pull wouldn't be a bad thing.
  15. It would run fine as long as I inserted the mag on an open bolt. It would scratch the hell out of the brass though. I pulled the mag catch out of my FM lower last week to mill the catch down a bit. I need a few things done at a machine shop at the moment. Finding the time to go is the problem.
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