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Posted: 10/16/2003 10:53:15 AM EDT
After discovering Continental Machine and Tool makes upper recievers (to 100% completion) for both RRA and Bushmaster I am assuming there is no difference in quality, fit or finish since they both roll off the same assembly line and identicla uppers are sent to Bushmaster and RRA. So my question is this:

Why buy an upper reciever based off of anything but price? Is there a manufacturer who somehow makes a lower quality upper? Is there any differnec at al in an $89 upper reciever and a $150 upper reciever?
Link Posted: 10/16/2003 11:17:29 AM EDT
Link Posted: 10/16/2003 11:20:11 AM EDT
I've heard the same thing about the collapsible stocks; one or two companies make 'em and then the big boys slap their name on them. A supplier reported to me that there is no difference, for example, between the 4 pos stocks going for $20 on Ebay and the $100 ones that Bushmaster sells.
Link Posted: 10/16/2003 5:17:27 PM EDT
Originally Posted By Feedingcannibal: I've heard the same thing about the collapsible stocks; one or two companies make 'em and then the big boys slap their name on them. A supplier reported to me that there is no difference, for example, between the 4 pos stocks going for $20 on Ebay and the $100 ones that Bushmaster sells.
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That I won't buy. Rock River, Bushmaster, DPMS, and a couple of other of the bigger boys are selling the same pieces, except for ID markings, and in those cases, you can use price as a factor. It's just that the least expensive (which I think is Rock River right now) is still going to set you back $65-$70. The $20 jobbies, which are conveniently not brand name listed, are always non current M4 style, bave really sleazy tubes, and the buffers are invariably filled w/lead shot, not steel discs interspersed w/rubber siscs; that is, when they even come w/a buffer and spring. That's why they're being peddled on e bay and not on our EE site.[:D]
Link Posted: 10/16/2003 6:35:21 PM EDT
I have bought Bushmaster and RRA uppers recently, and the finish at least is nicer on the Bushmasters. Not $70 nicer though.
Link Posted: 10/16/2003 6:49:01 PM EDT
Originally Posted By DevL: After discovering Continental Machine and Tool makes upper recievers (to 100% completion)...
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How did you discover this? Care to cite any sources?
Link Posted: 10/16/2003 7:32:54 PM EDT
Im not sure of the name but there was another thread about a guy who bought an upper and lower from continental at a gun show for $65 a piece because he had a connection there and claimed they made uppers and lowers currently for bushmaster and bushmaster answered back and said continental in times of peak demand at bushmaster has made uppers for them to their specs but they have never made lowers for them.
Link Posted: 10/16/2003 8:13:08 PM EDT
[Last Edit: 10/16/2003 8:13:25 PM EDT by _DR]
Which begs the question....Who DOES make Bushmaster's lower receivers...? I would not mind at all having CMT make my lower, they do very good work. If Bushmaster does not make their own lowers (and their rep did not state this) who makes them. Obviously the quality is good, but it is nice to know where the parts come from. It's kind of like Sears putting the "Kenmore" badge on their whirlpool washers and dryers. All good stuff, but not really what it appears to be. I suppose if it allows them to make more profit via the brand name marketing, why not?
Link Posted: 10/16/2003 8:23:41 PM EDT
I also read that earlier post and sent an email to CMT. I have not gotten a reply back but when I do I will post here to show you all the responce I got on them selling product with their name on it.
Link Posted: 10/16/2003 8:56:42 PM EDT
[Last Edit: 10/16/2003 8:57:25 PM EDT by Va_Dinger]
I just happened upon this at olyarms.com. I was checking a friends lower for its preban status. Looks like Olympic made a sizeable number of lowers for Bushmaster. [Quote:from olyarms.com] cheV0001 V0716 12/02/1986 10/01/1987 These receivers were manufactured for Bushmaster. While all of these are for BM, there were more.
Link Posted: 10/17/2003 7:17:59 AM EDT
[url=continentalmachinetool.com]Continental Machine Tool[/url] [img]continentalmachinetool.com/images/sections/firearms.gif[/img]
Link Posted: 10/17/2003 10:03:38 AM EDT
I recently bought a CMT lower at a show. I was able to go to a few tables and compare by sight only the CMT with some of the other name brands. While that is not a good comparison, it sure looks good. Price was significantly lower too.
Link Posted: 10/17/2003 10:31:38 AM EDT
I would like to see an overhead view looking inside a CMT lower if anyone can provide one. It would give a clue as to whether or not it is at least milled to the same specs as RRA or Bushmaster.
Link Posted: 10/17/2003 3:54:43 PM EDT
Link Posted: 10/17/2003 4:13:09 PM EDT
[Last Edit: 10/17/2003 4:14:21 PM EDT by QUIB]
I purchased a Model 1 Sales A3 upper, and I'll admit it looks good, and compared to the Colt A3 M4 marked upper I had the finnish and machine work looked identical. But when it came to rail specs, the Model 1 failed. I had to hit it with a file to get my #38 Swan sleeve to slide on. It fuctions perfect, other than the fact that the rail was out of spec. But if ya want quality and ZERO headaches in the future, pay the price.
Link Posted: 10/17/2003 6:02:28 PM EDT
Which begs the question....Who DOES make Bushmaster's lower receivers...?
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Originally Posted By Troy: This was the period before BM manufactured their own lowers. Prior to that, they were a parts company (Quality Parts, Co.), and built complete guns on other brands of lowers. -Troy
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Based on what Troy said it sounds like Bushmaster makes their own lowers. My next guess would be since they are setup to machine lowers then it would make sense that they machine their own uppers too. Right Troy?
Link Posted: 10/19/2003 6:20:57 AM EDT
So, Bushmaster manufacturers their rifles completely in house?
Link Posted: 10/19/2003 10:15:13 AM EDT
[Last Edit: 10/19/2003 10:45:16 AM EDT by AKM]
Surprise, surprise....If you guys think that all the different "manufactures" out their actually machine their OWN parts in house, then I have a bridge for sale at an incredibly low price! I found this out many years ago while building Model 1911 handguns. Out of all the different M1911 "manufactures” only a very few actually machine their own parts in house. Les Baer and Ed Brown do in fact machine most (but not all) of their own parts in house. At the time Ed Brown did admit they were using Baer Frames and Slides. Wilson Combat for example does not machine one single part in house! Wilson gets every part they sell from an independent supplier. From what I found out, Wilsons QC standards are in fact higher then many others as to what they will accept and their for put their name on (probably what Bushmaster and other high name manufactures do as well). It's also why you see AR-15 carriers with different machining attributes on their under sides even though these carriers come from the same "manufacturer" (One supplier was out of stock so they simply used another). Agreements are made between the suppliers and "manufactures" when it comes to keeping TIGHT LIPS so to say. Most manufactures will swear up and down that they manufacture (machine) ALL their own parts in house, when in fact they do not. I can imagine the AR-15 industry is much the same.
Link Posted: 10/19/2003 11:26:38 AM EDT
Link Posted: 10/19/2003 1:51:41 PM EDT
Here's a scan of 2 recently purchased CMT lowers... [img]http://www.imagestation.com/picture/sraid85/pe3e52a5c0a44105c74f53512154a89a4/fac86c3d.jpg[/img]
Link Posted: 10/19/2003 2:42:13 PM EDT
[Last Edit: 10/19/2003 2:43:51 PM EDT by DevL]
Is it just me or are the walls of the recievers two different widths?
Link Posted: 10/19/2003 2:54:35 PM EDT
It's just you, and the fact that the receivers are sitting a bit askew on the scanner bed...they measure exactly the same.
Link Posted: 10/19/2003 3:19:25 PM EDT
They dont have the same internal specs as my Bushmaster, as one of my walls juts out just a tad in one section but they look very nice. I will be getting one of these as my next lower and upper. [:)]
Link Posted: 10/22/2003 9:07:28 AM EDT
a les baer upper with forward assist is $108. it may be the only value on the les baer website. everything else is more expensive than the big 3. i almost ordered one today.
Link Posted: 10/22/2003 9:37:40 AM EDT
Who makes the Les Baer upper?
Link Posted: 10/22/2003 11:38:37 AM EDT
Where can I get a CMT lower and upper? Thanks
Link Posted: 10/22/2003 12:24:42 PM EDT
Where can I get a CMT lower and upper?
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Give Hoffman's gun center of Newington, Ct a call. They have CMT stripped A2 uppers & lowers in stock, for $150 a set... 860-666-8827
Link Posted: 10/22/2003 3:58:58 PM EDT
I got my CMT lower from Numrich Gun Parts in ShotGun news Mag. Love it. A set for 169.95 plus your ffl dealers charge. Lower for 99.95. Also Wholesale Gun has lowers for 88.99. They say made by the folks that make them for Colt. Numrich says made by same company thats makes them for Colt and FN.
Link Posted: 10/22/2003 4:37:38 PM EDT
les baer may make his own receivers. i didn't ask who made them, but he said they were machined to very tight specs. the baers i've handled were CRAZY precise. almost didn't seem like an AR.
Link Posted: 10/22/2003 5:13:18 PM EDT
I would bet Baer machines his own as I know for a fact he machines all his Model 1911 parts in house.
Link Posted: 10/22/2003 5:29:03 PM EDT
[Last Edit: 10/22/2003 5:31:49 PM EDT by Horik]
Is the front hole for the pivot pin bevelled away toward the bottom on each side or left intact/whole on the CMT upper? edited to clarify: Not the actual hole but the lower portion of the loop..........er something like that!
Link Posted: 10/30/2003 10:49:25 PM EDT
I know this is late, but I just read the message. I just checked my CMT lower and the metal around the hole is flat with the sides of the lower. My Colt pre-ban is made the same way.
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