Jason Edwards from United States, SC Public Profile

Tried this pin set over my normal BCM and Geissele pins. They measured rights on point. The springs and detents are well made and finished. Small parts are very important. Hopefully these hold out. So far so good

Just like everything else from BCM. Its not flashy. But its solid. Finish is great. Tolerances are tight. Very good threads, matched well with BCM castle nut and FN receiver. Dimensions great. Dry film inside tube. Its a top-notch mil spec part with assurance of good QC.

The suppressor model comes with a tapered hole around .055. I opened mine up to .070. I’ve got a couple BRT gas tubes. On BRTs website. They explain that a .070 on their tube, is equivalent to a .068 gas port size in your barrel. .002 smaller, for every size. I’m not sure if the same drop applies to the gas block? The gas block is well made. Comes with 4 screws. 2 for holding In position. 2 with locking ends for final install. All my other barrels use BCM gas systems, with exception of a couple aforementioned EZ TUNE tubes. The YHM block doesn’t fit as tight as the BCM. Around the barrel. Nor in the gas block where the tube itself goes. So it’s not a nice snug fit. Not loose either. That’s why I gave 4 stars instead of 5. If YHM could tighten up the tolerances a bit. Be perfect. Take in mind you are paying half the price. So you can afford to buy more than one.

11.5 bloodline sauce pack. Top tier packaging. Showed up quickly. Gas block and gas tube aren’t as tight as I’d like em to be. Used a BCM gas block and tube. Barrel is beautiful. My third one. Pin gauges at .072 gas port. Feed ramps very nice. Perfect matchup to upper. Has snug fit to the standard upper receiver I used.(Not a thermal fit upper). The bolt carrier has a nice finish to it. Came nitrided. Specs and tolerances were good. I prefer phosphate and chrome. But supposedly theses bolts are headspaced to the specific barrel in the sauce pack. I did replace the extractor spring, o ring, and insert. With a Sprinco spring and O ring only. Ejector was a tad weak for me. Replaced it with a Sprinco ejector spring and new roll pin. I have NOT run it at time of posting. My Criterion 11.5 has a .069 gas port with a headspaced BCM bolt. So I presume this barrel will be just fine. All my Rosco barrels have been very accurate. I highly recommend Rosco barrels for the average man. Your next step up would be a Geissele, Criterion, BCM.

Only ran once so far. It’s riding on an Lpvo. The Britney’s settings are ok. Seems it goes from too bright to not bright enough. Like it skipped 2 settings. Adjustments seem ok. You can feel the detent clicks. I have a slight astigmatism. Eotechs give me no issues. Most does are a tiny fuzzy. This does well with my eyes. Having the ring around the retical always helps my eyes. 7075 housing. Shake awake. Top load battery. Not bad at all for under $200

This is a “stiffer” spring, for lack of a better term. I run Geissele or BCM lower parts kits. Whichever I have around. The spring is the same size. But does feel stiffer compared to others. That can be a good or bad thing. In my case, seems to work just fine. Not sure on longevity yet.

Hard to find an actual “spiral” roll pin. Most are just the type that shaped like a “c” for lack of better term. With these, they can reused if you put them back in the hole you removed them from. CMMG has been good milspec quality stuff from my experience. So you have that reassurance. So you have a quality part, good price. And legit place to order for when using optics planet.

It’s a button. It fits well. Has a good finish. The texture is a little different. Probably makes no difference than a milspec. But you can be confident in the material, the tolerance. And brag that it’s a Geissele. They do look cool in my opinion.

So I’ve switched to this specific grip on all my lowers. I don’t like the beaver tail. My hands fit better without. Has great texture. Great angle for your wrist. A nice water tight storage compartment for your skittles. If you use the BCM trigger guard, there is an optional piece the slides in the front of grip that goes under the guard. So you don’t get a blister on your finger. And it’s BCM, so you know it’ll last forever.

Basic low budget stock. Good for a plonked or range rifle. It what it is. Get what you pay for. Not the the tightest fit. But for the money, what do you expect. If you want this style of stock and quality. Gonna have to pay more for it.