codyusaf04

Thanks for the info guys! I appreciate it!

The Jist: Bought a DPMS .308 Recon w/ 16 inch SS HBAR. Decided I wanted a long-range contender so I bought a completely separate upper and 24 inch SS BBL, gas block, tube, etc. As well as a magpul PRS stock that I plan to keep on the lower receiver permanently. I planned to simply swap-out uppers for doing different range shooting. Started thinking about he PRS stock and the rifle length buffer tube I had to install and larger buffer etc. Question...Since I installed the rifle-length buffer tube, spring and larger buffer with the PRS stock...will that cause problems with recoil, cycling, etc. when I go to swap back to the 16 in upper? Could I mitigate extra gas pressure by regulating the 16 inch upper with an adjustable gas block? Will it damage the action/buffer/spring? Does having the different length gas system do anything to affect the action significantly to cause harm? I don't want to cause any damage. As you can see at the links below...the 16inch upper has the gas block located closer to the upper receiver than the 24 inch barrel does. I haven't shot the 24 inch upper yet because the new gas system was missing the gas tube roll-pin...Gotta get another one. This link shows the 16in .308 recon. http://www.dpmsinc.com/308-RECON_ep_93-1.html The second link shows the LR-308 which has the exact same-length forend, barrel, and gas block location on it that I installed on the 24 inch upper. http://www.dpmsinc.com/LR-308_ep_124-1.html Please advise.