So here's the deal, I accidentally bought a "
Commercial Buffer Kit" awhile back and when I started my Lower Build I realized that "I bought commercial and Not Milspec" being my
spare Milspec stocks didnt fit. My Lower is for "
Carbine" and that is what I bought and am looking for more of:
The Commercial Buffer Tube is "1 Inch Longer" than The Milspec Buffer tube on my M&P15.
Everyone keeps saying I can just get a new Buffer tube and that the Spring is interchangeable but Would "1 Inch make a major difference in the way the spring
would fit a Commercial and would be 1 Inch of more Pressure inside of a Milspec Tube. The spring in my "Commercial Kit is a rusty Bronze color and has a "Made in China" sticker on it, its from
"FTF Industries"
I was convinced they were interchangeable until I ran across this "Milspec Spring" last night that says "Will not work in Commercial Tubes" which If they are interchangeable I don't know why
http://combatoptical.com/catalog/-AR15-M4-.223-5.56-Mil-Spec-Buffer-Spring.-728.html
That is one of my others questions: Recoil Springs range from a 5 dollar DPMS replacement spring to 40-50 dollar springs, Is the DPMS Spring good enough?
DPMS uses Commercial Tubes/ Specs if I'm not mistaking, so now Im even more confused on this Spring length and Buffer tube length and
I just want a spring/buffer tube like My M&P15 SPORT
Also Is it normal for a Commerical Buffer tube to be an Inch longer? About half of that inch is extra threads
Buy yet people say they are interchangeable but 1 inch Difference Buffer tube sizes will make a major difference with the same spring in 2 diff sized tubes.
This is the 5 Dollar DPMS Spring
http://www.brownells.com/rifle-parts/receiver-amp-action-parts/action-springs/carbine-buffer-spring-prod32438.aspx
In depth advice would be great, everyone says they are compatible, but I stress the point that
"Function" will definately be different because of Buffer tube size
So do I buy a "Mil-Spec spring? with a Mil-Spec Buffer Tube? Wondering if my M&P15 Sport has Mil-Spec Spring or normal spring being its Milspec, atleast the Buffer Tube is, the barrel and other parts arent.