Question on upgrade stock 6920

Ok, I did search and probably just missed it. Have a colt 6920 I purchased last Nov, really like the rifle. But after fingering a lmt on Sunday with the sopmod stock on it, I realized how I really don’t like the Moe stock on this rifle. I’m torn between the lmt and the enhanced b5. My question is do I need to replace the buffer tube if I get a new stock? Or are the holes in the buffer tube a universal size? Bang for my buck, which stock would you guys recommend? I don’t have money to throw around, but I don’t mind saving and buying once crying once either. Just want to make the proper purchase the first time.

Thanks in advance.

No need to change anything beside the stock itself. Get the B5 version, it’s a great stock that’ll save you some money over the $200 LMT one.

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This. I have the SOPMOD and love it. Any future rifles will have it, no question. And the B5 is a much better value than the LMT.

ETA: Yes, like TNW mentioned below, get the newer version with the QD socket. The first batch were too small for various reasons.

There is a great write-up on the differences between the LMT and B5 stocks on TOS, but I assume I can’t link to it here. Just google “b5 vs lmt sopmod”.

You’re good just changing the stock. I’d grab the B5. If it seems too tight on your buffer tube you can sand down the inside a bit. There are a few different B5 versions, so if you want QD keep an eye out for that.

Since you’re asking if you need to replace the RE tube, I’m assuming that you’re also unaware that there are two different size tubes, which in turn, requires the appropriate size stock.
I’m not even sure if the LMT or the B5 are offered in a commercial size but no matter what brand you decide to purchase, be mindful to order a “Milspec” size & not a “commercial” size stock.
Most quality AR’s come with a “Milspec” size RE tube, and your 6920 is one of them.

LMT is waaaay over priced. Get the cheaper B-5,you’ll dig it

I have both stocks. I have not examined them side by side, but offhand I cannot remember any difference between the two. Get the B5.

I am assuming you like the SOPMOD due to the increased cheekweld shelf, if that is the case I’d suggest checking out the Magpul STR stock as well.

Thanks for all the replies and good info. I will see if the b5 is milspec sized. Im glad that was brought up cause yes I was unaware of two sizes. I appreciate it.

No one can tell you which buttstock to get any more than they can tell you what shoes to buy. So long as the stock is of good quality, buy the one you find to be the most comfortable. The adjustable stock that makes me the happiest is the Magpul CTR with the enhanced butt pad

FYI
http://www.ar15fornoobs.com/mil-spec-vs-commercial-spec-buffer-tubes
https://www.m4carbine.net/showthread.php?101-Buffer-Tube-Basics

If you have to sand down the inside of your stock, something is wrong.

There is nothing to see in regards to the stock. I am pretty sure it was already pointed out that B5 only makes the MILSPEC RE version. Your Colt (unless it has been altered) has a 1.14 inch MILSPEC extension. I have several B5 stocks, along with BCM and Magpul. You can’t go wrong with one.

Stickman, I wonder if he’s referring to the contract screwup that B5 did of the early SOPMODs (and those also didn’t have QD). Turned out they were a bit narrower than normal and folks on Ebay and everywhere else were selling them between $30-70. Besides the tight fit, there was nothing else wrong with the stock and some people sanded down the interior to make it work.

Now, if you were to buy a brand new B5, it won’t have that issue.

My B5 Sopmod Bravo from Brownells should arrive today.

I’ll be replacing my Magpul stock that came with my Colt LE6920.

I didn’t get quite enough cheek weld with the Magpul.

I currently only have B5 Bravo stocks. They are much better than the m4 stock or a magpul moe (only other stocks I have experience with) to me. I recommend them highly.

If I was doing a new build I might try a BCM gunfighter stock though.