Extraxtor spring & O ring Up Grade kit for AR ????

lone ranger

lone ranger

CGN Ultra frequent flyer
Rating - 100%
219   0   1
Location
sask
I have been doing research on the Short barrel AR platform and have come across extractor Issues on the LMT 10.5" Mk 18 Mod 0 and the norinco CQ-A 10.5 rifles. The short barrel cause extractor issues due to different pressures in blow back. Where can I buy this kit ? I want to install it Before I have issues. Thanxs.
 
Last edited:
My 10.5" is 2 years old. I cleaned it recently and I have the rubber O ring inside, I don't know for the spring. The only thing I replaced is the buffer. I putted an heavy buffer H2, but even with the standard buffer I had no problem.
 
GLOCK_PERFECTION said:
My 10.5" is 2 years old. I cleaned it recently and I have the rubber O ring inside, I don't know for the spring. The only thing I replaced is the buffer. I putted an heavy buffer H2, but even with the standard buffer I had no problem.
Click to expand...

Some of the later models had the O ring. Was yours like that from new, or did you put it in ?
 
It's stock. The only mod that I did is the buffer.

On my other 14.5" LMT, there is also a O ring inside the extractor. The rifle is 2.5yrs old.
 
lone ranger said:
This guy sums up the problems of the short barrel AR and the benifits of having a Piston gas system......
Click to expand...


Based solely on my personal experience.... All the issues I have seen with SBR's have been a result of poorly assembled "homebuilt" or more commonly known as franken guns. A lot of builders buy quality uppers & lowers then skimp on the buffer or just don't understand the subtle differences in what essentially looks like two identical buffers.(They are marked for a reason!) Tuning the gas system is equally important and by tuning I do not mean increasing the hole in the gas port!!!

To date I have not experienced any issues with any of the quality OEM sbr's nor any that were in fact correctly built by experienced AR platform users / builders. YMMMV but I'm willing to bet a lot of the issues on a "built" gun can be traced back to a component of the build not really suitable for use in the end product.
 
I find it really, really interesting that we apparently don't have a site sponsor that reliably has this (arguably) single most helpful / highly recommended AR15 upgrade part available (the spring itself makes the biggest difference).

It cost a couple of bucks to the consumer, and presumably a retailer could buy thousands of them for dirt cheap and have a very healthy margin.

I really would prefer to get stuff like this locally, but evidently, you can't. I'd love to be proven wrong...
 
Just for fun I went to Arnies Guns in town here,..and he HAD the spring kit WOW. Last one. I'm happy. He is ordering in more.
 
I got this from brownells:
hxxp://www brownells com/rifle-parts/extractor-parts/extractors/ar-15-extractor-upgrade-kit-sku071000043-24635-51153.aspx?sku=071000043
$9.06 USD
 
You must log in or register to reply here.
Back
Top Bottom