Fiber composite lower?

[xenophobe]

I know the type of gun is an AR15, not a name or whatever. I just want to make sure I am not buying something where I will regret in a week. I dont want it to feel phony. Ehh maybe Ill just pick up a all metal one. I found a complete lower for 200 bucks.

I wouldn't worry... carbon and polymer receivers have been around for a while now. As long as you're not extremely rough with them you shouldn't have any problems.

[Anchors]

I wouldn't worry... carbon and polymer receivers have been around for a while now. As long as you're not extremely rough with them you shouldn't have any problems.

Sometimes polymer is even stronger than metal (Ex. PMags vs USGI). I wouldn't worry about it.

[xenophobe]

Sometimes polymer is even stronger than metal (Ex. PMags vs USGI). I wouldn't worry about it.

Yeah, as long as they're designed right, there shouldn't be any issues. I think Professional Ordinance worked out all the major issues with the carbon lowers back when they were producing the Carbon-15. I don't think they changed anything when Bushmaster took them over. And it was... Cavalry Arms I think? basically had a polymer complete lower out for ages now. With the exception of the early Carbon-15s, all of them are durable and function just fine.

[gsrious]

i have the PC lower and its good to go.

[GUNFREAK]

I bought one from the last group buy in Fresno. I have taken it to the range once already. I fired roughly 100 rounds through it. It functioned fine. It is lighter than the traditional metal lowers but its not bad at all. The barrel does seem slightly front heavy but the overall weight of the rifle is very nice.

The lower parts kits is also made from the same polymer. I noticed that the trigger pull is slightly less than my Bushmaster and DS Arms AR-15. Maybe the plastic gives a little when you're squeezing the trigger, I don't know exactly. So far it has held up nicely. I will taking it out to the range this Sunday to test it out further.

Good luck with your purchase. I think you will be happy with a Plum Crazy

[NationsMostWanted]

yea i got mine back last week but hasnt shot it yet...other than the small defect i had on it that Plumcrazy took care of, it shot fine. Now I need to go out and shoot my new one they sent me.

I like it and im sure u would love it too!

[Bruce3]

just imagine if Magpul came out with a polymer AR lower, people would eat it up!

[Moress]

Don't forget, Plumcray has a lifetime warrenty on the lower, so if anything is wrong with it, send it back. Buy with confidence

[Sunday]

Yup you guys are right. Its the plum crazy ones and I cant pass up the deal. I know my wife is going to kill me cause I just bought 2 guns in the past month, but for 112 bucks, I cant beat it!

I was also worried about the balance of the rifle, but if I put a nice scope it should be a bit better.

You have to be sneaky with you gun purchases . Trying to fool the wife is one of lifes greatest pleasures!!!

[Uriah02]

You're talking about the Plumcrazy lowers, and it appears the general consensus is that they work fine as an inexpensive AR lower

The description of inexpensive implies it is not the most rugged/durable? What are its shortcomings other than the low weight throwing off the balance?

[hcbr]

You have to be sneaky with you gun purchases . Trying to fool the wife is one of lifes greatest pleasures!!!

+1,987,690 for you on being right with that

[mif_slim]

MrPlink
No, the plum crazy lower would be a fake AR. As such, you should give it to me so you don't have to risk being called a poser by various elitists and mall ninjas.

You gotta ask him AFTER he buys it. He's still in the process of thinking about buying one. That way you can ask just for shipping.


Anyways, op, I just took my PC and shot 800 rounds thru her the other day. No, not personal computer, plum crazy. so far I have had 1500 rounds since I picked her up a month ago. Runs great ad no worries.

[captbilly]

It is much more high tech than old fashioned aluminum.

Ok another question. Is the fiber lower sort of a "wanna be" lower compared to a all metal one? If I were to use the plum crazy lower, would it still be a "true" AR15? Get what I am trying to say?

All kidding aside, there is nothing particularly great about an aluminum lower receiver. The original M-16 used aluminum not because it was great but because it was light and cheap. Composites are used in such things as the space shuttle and F-22s and Formula One race cars, and in fact most of those application are moving away from aluminum because the composite is so much better. I don't know what these Plum Crazy lowers are made of exactly, but a carbon fiber reinforced polymer can be many times stronger and lighter than aluminum or even steel or titanium. My only concern on composite parts on any gun would be how they would react to very high temperatures from very fast shooting for longs periods of time. Realistically you aren't going to see such temperatures on an normal semi auto AR, and it may not be a problem with the lower even on a fully auto AR in a crazy firefight, because the lower may not actually get that hot. If you watch some YouTube videos of guys shooting 500 rounds as fast as they can, you see that the gun gets so hot that the hand guard actually catches on fire. I suppose that if the lower were to get that hot there could be a problem, although come to think of it an aluminum lower would get so hot you couldn't hold it under similar circumstances, and aluminum loses the majority of it's strength at only a few hundred degrees.

Point is, a composite lower is fine, maybe better than aluminum.

[mif_slim]

^ go see 1000 round challenge. A 1911 got super hot due to heat from ye cartridge after 600+rd. A Glock was cool to the touch even after 1000 rounds shot thru it. That kind of shows how polymer can handle heat pretty well too