The PCC build that I thought would never end, has ended.

So this build began as an impulse buy. The range was closed so i stopped by Baltimore’s Best to look around. So that’s why I’m posting this tale. It’s a warning that visiting a gun shop after a failed range visit is like going to the grocery store while starving. So I see a YHM 9mm glock lower. Something I’ve been meaning to build but in the back burner is an AR PCC. 10 minutes later and I’m waking out with it. After getting home and researching I decide I need a matching upper so I get full LRBO function and locking back on an empty mag. Not as easy at it sounds as apparently these haven’t been that popular and supply is pretty low. I did however find one at a decent price so I decided to order everything to complete the build that night. Big mistake! The upper isn’t close to a Milspec AR so the Aero rail I ordered wouldn’t fit. Totally my fault but that’s strike one. Then I find out the Foxtrot Mike BCG won’t work with the lower. Again my fault since it’s posted on the YHM website that I never checked for compatibility. Strike two. Fearing a third strike would frustrate me enough to scrap the build plans I call YHm and match every new part with something they have used and had success with. So I get a new BCM rail and CMMG bcg and start to assemble.

I get everything built, lower is really nice with the CMC 3.5 trigger and Strike enhanced lpk. Barrel goes on nice with the rail, and then boom strike 3. Since I ordered a 5.5” Ballistic Advantage barrel and a 7” rail I had always planned on a Kaw Valley linear comp. the problem is the standard Kaw Valley is too big to fit in the small diameter BCM rail, where the original Aero was plenty big. At this point I put it all away for a week and focused on other builds. Luckily a few days later I came across the Kaw Valley “slim” model, and it luckily enough cleared the BCM by a 1/10th. I got it ordered and by some miracle the build was complete and functional. I think I got anpretty tough lesson in being diligent about making sure parts are compatible before ordering, but at the end of the day i think it’s even better than I had previously planned.

Hawt. You probably lucked out forcing yourself into the slim. That looks very pointable and balanced.

Two weeks? Amateur. I think mine is finally working right after two years.

jimbobborg said:

Two weeks? Amateur. I think mine is finally working right after two years.

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I just don’t have the patience for firearms that don’t function 100%. I really do love the way this thing handles and shoots, but if I had it to do over again I would probably just buy a CMMG Guard.

Russ D said:

I just don’t have the patience for firearms that don’t function 100%. I really do love the way this thing handles and shoots, but if I had it to do over again I would probably just buy a CMMG Guard.

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I have a pathological need to fix stuff

jimbobborg said:

I have a pathological need to fix stuff

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Me too. My G17 80% only took 11 months to get it digesting everything perfectly (except Magtech 115gr SPRN). Never struggled so much with any gun before.

Very nice!

Beauty.

Took me a year just to get the parts for my 9mm carbine during the panic years. Everyone wanted a 9mm, it seemed.

I used a Black Creek Precision Colt type magazine lower. Mine works with all brands of magazines, including the ProMag Poly. The Poly does need a bit of tweeking to remove excess flashing.

First trip with an optic and these were the first two rounds.

That's really cool. I wanted a PCC, so I got 995 and Scorpion carbines, but still want a 9mm upper for my AR. I was gonna dedicate a couple of my AR mags to use the Mean 9mm inserts for the mags. I was set on a PSA 9mm upper, because they have the particular upper I wanted, but has been out of stock forever and a day now.

Sirex said:

That's really cool. I wanted a PCC, so I got 995 and Scorpion carbines, but still want a 9mm upper for my AR. I was gonna dedicate a couple of my AR mags to use the Mean 9mm inserts for the mags. I was set on a PSA 9mm upper, because they have the particular upper I wanted, but has been out of stock forever and a day now.

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I have a Scorpion. I haven’t decided yet which I like better. It’s not going to be a fare fight though since the AR9 has a CMC trigger.