A visual example of why M4C recommends quality AR parts

[Striker6]

I guess I'm not seeing what's wrong with that hammer. Could be I'm looking at the pic on my phone.

There is a big ass crack on the lower third of the hammer face.

[Doc Safari]

Got it. Had to enlarge it on my phone to see it.

[docsherm]

Quoth Depeche Mode, “Everything counts in small amounts”

All these people who go for “good deals” pay at some point.

“MY DPMS RECON II DOES THE EXACT SAME AS YOUR UPPITY WHITEBOY SR25. I WOULDN’T SPEND 5 LARGE ON A GUN THATS NOT COMBAT WORTHY”

A month later

“MY DPMS RECON II DIED AFTER 400 ROUNDS. I AM CALLING MANUFACTURER. I CANNOT BELIEVE THIS! CAN YOU ALL BELIEVE THIS??”

Never fails....


....except the parts

I know exactly what you mean. I have a DPMS lower that I put together with CMt parts back in 2000. I have had to almost completely replace all of the parts and gone through 3 triggers in the time in have had it. And now I have to use KNS pins for the trigger.





FYI... it is SBRed and has over 55k through it.

[Pappabear]

Here's something to add to the "Just as good" fire. This was from a PSA branded LPK, fresh out of the bag earlier this week.

Attachment 56443

Well Well Well, point well taken. Shit be shit and shit be shit...PSA be ....

[docsherm]

Well Well Well, point well taken. Shit be shit and shit be shit...PSA be ....

Or it was a bad batch...........

[26 Inf]

Well Well Well, point well taken. Shit be shit and shit be shit...PSA be ....

Did you by any chance read the prior posts: Schmid Tool and Engineering is an OEM supplier to many companies, including Colt - unless someone replaced the parts in my one and only Colt lower.

Granted, Schmid or PSA should have caught it, but dayum......

But, if I was you I'd look at every AR I owned and get rid of any part with an S cast or stamped on it.

[R0CKETMAN]

This could also be the difference between a chrome silicon spring vs a stainless steel spring.

When I started shooting corrosive 7n6 I bought some new 20round GI mags, half were chrome silicon, the other half stainless steel. Never cleaned the mags for the first year, didn’t think they needed it. Opened them up after a year and the chrome silicon had significant surface rust. Stainless steel were fine.

SS rust too .. ask any offshore fisherman

Unscientfic science is unscientific buuuuuuuut:

Yep presume both springs didn’t have the same “life”


Spring maker of each would be useful, maybe...

[Hammer_Man]

That looks like a Schmid. Schmids are used in Sionics and LMT rifles and are the basis for the ALG QMS and ACT. I believe they are also used in most Colts and most FCGs in actual military-production M16 and M4 FOW rifles.

Could be that PSA got a second from Schmid, but I wouldn't ordinarily expect to see a Schmid look like that from the factory.

I didn't know PSA used Schmid parts. It does appear to have been plated with some sort of nickel boron coating, perhaps the plating was done at a third party outfit... That's just my guess.

[phixion]

I didn't know PSA used Schmid parts. It does appear to have been plated with some sort of nickel boron coating, perhaps the plating was done at a third party outfit... That's just my guess.

My experience stops ~ late 2015, but every PSA lower parts kit and complete lower I came across during that time used Schmid components -- triggers, bolt catches, selectors, etc.

[Mr McSimon]

I had my small parts bin out tonight and decided to snap a pic for this thread. The BCM looks a lot like the PSA and Aero, I'd bet it's the same safety but special order to have the star instead of the S. Nice touch if you ask me, or at least in line with the rest of the manufacturing world where a select few factories produce the same brand name. generic, and private label products side by side. I have a SOLGW LPK on order, and I saw or read somewhere they use Schmid too. I didn't check all the other parts, but the PSA bolt catch was also marked with an S.