its very very high quality stuff. their buffer tubes are better made than milspec with no sharp edges and a very very nice finish.
there are 3 types of buffer tubes carbine rifle and pistol. they just refer to the type of stock your using not the actual gas system. so you can use a pistol buffer tube spring and buffer on a rifle length gas system with no issues. or carbine or however you care to mix it up.
the only thing is whichever tube you pick the stock buffer and buffer spring need to be the same type.
now. there are two types of carbine buffer tubes milspec and commercial. milspec are smaller outside diameter which makes them stronger. commercial are a bit larger in outside diameter making them weaker but cheaper to make by a few pennies a unit.
back to vltor. the tubes are really tight to the proper stock making stock wiggle on collapsable stocks pretty non-existant. very very high quality stuff.
i use a very similar stock on my scar17. it shoulders very well and has a good solid feel. you wont go wrong with the kit.
ive got a vltor tube thats going on my ar15 carbine that was on the wife's dpms panther m4. i bought it to upgrade that rifle to milspec stock but its been on the shelf since i sold it and got her a bcm carbine. at some point the buffer retainer will bend and need to be replaced thats when the vltor tube goes in.
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