Complete AR-15 lower $120 4 position M4 stock question??

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I have a couple of CMMG AR type .22 uppers that I want to get lowers for. I do not really want to use my other lowers on these and found some that are made by Plum Crazy for $119 to $129.99 complete with non hooked trigger and 4 position M4 stock. I have only talked to one person about this lower and he spoke highly of them as he should!! He is selling them!! But; he did say he has not received any negative feed back and shoots this lower on his ARs. If these are good to go they should work really well for the .22 uppers and I might even use one for a 7.62x39 Ar upper?

http://search.yahoo.com/r/_ylt=A0oG...duct/plum-crazy-complete-lower-receiver-12995

http://youtu.be/beq1srK-WBo

http://youtu.be/64PfDQNEh7Q

Feed back
Experience
Knowledge would be greatly appreciated

P.S. I can buy 3 of these for about the price of a Spikes or other brand named lower. It is approx 1/2 the weight of a standard lower with a crisp trigger of about 5.5 pounds. Should make for a neat .22 platform hahahah if they work!
 
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I bought one and put a DPMS Oracle Nato upper on it with a EO Tech 512 and the lower works just fine, really tight fit. The trigger is not too bad..
 
Thanks jem I have heard they fit tight. It is a polymer trigger and hammer so my concern is durability with the hammer. Guess if there was a problem one could always replace the hammer and trigger later.
 
I use one on my 6.8x43mm for my ultralight build and it's been great so far, and the trigger is surprisingly nice for being polymer. I'll see if I cam find the whole write up I did on it at 68forums.com
 
What really turned me on to them (besides price) I just think they would be great for .22 uppers; keeping the rifle lite. Youtube had one on a .50 cal so I know they will work just wonder what type problems one can expect (if any) with the unit.
 
I read of a few plum crazy lowers breaking over at AR15.com. The failures were all larger caliber, 7.62x39 or larger. I have not read of any failures with .22lr or 9mm.

I personally would not use one for any centerfire caliber, except 9mm.
 
I read of a few plum crazy lowers breaking over at AR15.com. The failures were all larger caliber, 7.62x39 or larger. I have not read of any failures with .22lr or 9mm.
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Life time warranty
 
Yessir, mr.criminal . My cheap <deleted> $100 lower just broke while I was trying to defend myself . Would you mind waiting while I send this in for repair, it's got a warranty.


Seriously, guys, you get what you pay for.
 
Heretic

Yessir, mr.criminal . My cheap <deleted> $100 lower just broke while I was trying to defend myself . Would you mind waiting while I send this in for repair, it's got a warranty.
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exactly
 
Heretic said:
Yessir, mr.criminal . My cheap <deleted> $100 lower just broke while I was trying to defend myself . Would you mind waiting while I send this in for repair, it's got a warranty.


Seriously, guys, you get what you pay for.
Click to expand...
Seems pretty solid to me..
 
Yessir, mr.criminal . My cheap <deleted> $100 lower just broke while I was trying to defend myself . Would you mind waiting while I send this in for repair, it's got a warranty.
Click to expand...

Life time warranty slight difference


hahahaha guys the lowers are going on AR .22 plinkers for small varmint control. If I were out and that was all I had would I wish for something bigger and better if the Taliban mounted a major attack against me; yes!
A battle rifle is exactly that; for use in battle. I do not think an AR with a .22 upper would be my first choice for such a weapon. The Plum Crazy lower on a plinker for kids and introduction type Black rifles to non shooters with it's weight saving polymer design seems to be something worth a consideration.
 
There are plenty of aluminum lowers out there that aren't worth the metal they're made out of and plenty of companies that will not stand by their product, so for a company to back up their lower for life is a good deal. Basing an opinion on a product that you do not own from what someone said on arfcom is irresponsible at best. There is no way we can know what the user may have done to cause the failure. Yes, maybe he did nothing wrong and it was a defective product, but there are other possibilities that come into play.

How many c-15 lowers do you think PCM has sold? And how many have you heard about failing?

As for mr criminal, if I'm staking my life on a weapon, I probably won't pick that rifle first, but it's not because of the lower. I have weapons better suited for hd.
 
Seems like there were many who said the plastic Glock would not be worth having when it first came out. It has proven to be the weapon of choice for countless individuals.

No one likes or is sure of change when something is first introduced; only time will tell if the Plum Crazy guys got it right?
 
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Another thing to consider if you're not going to put a non-22lr upper on this receiver is to look into the S&W M&P15-22. While it is a dedicated .22lr platform, it works well with bulk ammo as well as CCI velocitors and CCI tactical.
 
I'm always surprised when the guys that hate the Plum Crazy lower either: A. Don't own one and haven't tried one; and/or B. Own semi-automatic handguns with polymer frames.

I suppose it's just a fear of "new" things or a purist attitude. I dunno.

Anyway, I DO own a Plum Crazy lower. I'm running a Del-Ton middy 5.56 upper on it with no problem.

As I recall, there was quite a bit of suspicion that the broken lowers shown on Arfcom had been subjected either to user error or sabotage. Who knows.
 
My source said that all three that have broken were due to operator modifications. There is a metal (hela) coil that is threaded for a commercial buffers. The treading on non commercial buffers are not the same. Forced entry, cross threading and general Magilla Gorilla gunsmithing and walla you get what you get.

The other thing I found out about the lowers; the hammer is slightly wider than a standard. Certain .22 uppers will not allow the hammer to enter the channel and work the BCG. Even the CMMG upper would require the hammer to be shaved/ sanded for everything to work correctly. The company I spoke with said they would send me an extra hammer just incase I messed up on the hammer. Hummmm

London Bridge Firearms (Az) is where I got much of my info.
 
Ok receive the Plumcrazy lowers and as expected the hammers will not go inside the channel of the CMMG uppers. I was told this before my purchase. I called London Bridge firearms and let them know I had received the lowers and I wanted to know if he had a schematic or directions for shaving the trigger down. Bill (the owner?) did not have a schematic but said he would call Plumcrazy and see if they had directions on how much and where I needed to change the hammer. This is the reply I received from Bill.

Hi

Spoke with PCF MFG today re the hammers and I have arranged for them to send out two profiled hammers for use with.22 uppers they said that they would send them out to you today no charge. Hope this is ok.

Best Regards

Bill

Bill Pearce
London Bridge Firearms
1695 Mesquite Ave #214
Lake Havasu City, AZ 86403
Phone: (928) 453-0045
Fax: (928) 453-0025

I have been extremely please with my dealings with Bill.

The uppers I received have a Six position adjustable stock not a 4 position. They are as advertised about 45% as heavy as a aluminum lower. The buffer is the only weight which I believe is now mil-spec not commercial (?). I will be replacing the hammers as soon as they come in and will let you know how they work out. I have shot the uppers with aluminum lowers and they worked great but I felt that the uppers were to not balanced well with that set up and were to heavy for a .22. I think these lowers will make a very nice well balanced rifle but like I said I will know once I get the hammers installed. If I would have had more time and my head pulled out today I could have placed the lowers on another AR and given them a work out but I was in a hurry to get back from the range and it never occurred to me??
 
good customer service. It should be a nice .22lr combo. AAR please.

I dont think i would use one for a centerfire, but i like the idea for a .22.
 
Actually Bill said he has been running his on a Del-Ton upper which has over 5000 rounds through it. His comment was if anything the trigger is even nicer now than when new. I am going to have to get a bigger safe if I purchase anymore weapons so for me this will be my final purchase of any weapon. I actually have all I want and probably to much for my needs. Will make the Grand kids happy for sure.
 
The new hammers arrived yesterday (10 Sept.) and with about 5 minutes each they were installed. I do not have a caliper but just looking my eyes can not tell the difference between old and new hammers!! But once installed instead of the clunk of the hammer hitting the channel it is a nice clear whack as it hits the BCG's firing pin. Sometimes this week I will shoot mucho ammo through them and see if there are any apparent problems. As hoped this combo produced a really nice balance and weight for the CMMG uppers. I be happy.
 
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I shot 550 through each of the uppers today. Other than finally figuring out that the Plumcrazy lower will not work with the forward assist block for one of the uppers; everything worked better than expected. Initially was checking zero of the red dots but was putting 5 shots (usually 3 touching) at 27 yards which for me with a red dot is pretty good. I can do better with an Eotech due to dot size but I am happy.

I have had some CMMG .22 mags that I spray painted black over a year ago that I have been using. If I remember I only had 2 times where I had to dump a mag and clear a malfunction. Very very happy with weight and performance of the rifles.

I may do a little dremel work on the forward assist block ( 3" polymer block that sits behind the BCG ) and reinstall but at this stage it just isn't that big a deal. One of the .22 uppers has the forward assist block and chrome BCG. Even the new hammer will not work if the polymer block is installed; but I figure I can dremel out the walls about 1/32 each side of the channel of the block and problem solved. The other upper does not have the forward assist block so it worked from the get go.

I have never seen federal bulk work as good as the last two boxes I purchased.
 
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