Contemplating a New Build, Receiver Sets?

**ChileRelleno** · 03-26-24, 14:05

I'm contemplating a new build and would like to know what y'alls think about various receiver set manufacturers.

BCM,
Zev,
Lantac, N15 Raven
San Tan, STT 15
Centurion Arms, CM4
Seekins Precision, SP223

**titsonritz** · 03-26-24, 14:16

SOLGW sets are really nice tight

**JediGuy** · 03-26-24, 17:08

Every upper receiver I have is tight on a Centurion lower.

So is the Grey Ghost upper/lower I picked up last fall. They may still have blems.

**ChileRelleno** · 03-26-24, 17:35

Centurion is still pretty well thought of, yes?
Besides their receiver sets, does anyone have any input on their C4 vs CMR mlok rails?

**flenna** · 03-26-24, 19:16

I picked up this set last month when they were on sale and am impressed with the fit and finish. I haven’t decided what to build with it yet, though, as I just purchased the set on a whim.

https://www.unbrandedar.com/product-...billet-lowers/

**e z money** · 03-26-24, 19:21

BCM still has those $50 blem upper receivers. I got one and it came assembled and a very small almost unnoticeable scratch on it.

**Rifleman_04** · 03-28-24, 09:08

Originally Posted by e z money

BCM still has those $50 blem upper receivers. I got one and it came assembled and a very small almost unnoticeable scratch on it.

I snagged two of those and couldn’t see any blem.

One was fine but the other wouldn’t allow any empty magazine to seat even with the bolt locked to the rear on any lower I tried including Colt and LMT lowers.

Blem isn’t always cosmetic I guess.

**1986s4** · 03-29-24, 08:20

Originally Posted by e z money

BCM still has those $50 blem upper receivers. I got one and it came assembled and a very small almost unnoticeable scratch on it.

Yes, the BCM blems have been my go to's for my past few builds. But I'm a mix and match kind of guy so my my last lower was a Geissele blem and it fits nicely with the BCM blem...