Backwards - or i don't think like an engineer. - Seekins Precision Low Profile Adjustable Gas Block

If you assemble this on a carbine or mid length gas tube system you will have to remove your handguard/rail to access the gas adjustment set screw. Really really. I thought I was seeing things at first and slapped the unit together - this block and a Spike's mid-length melonite coated tube, EZPZ - but when I put it on the gun I'd forgotten about the adjustable part of the block. Got the the range, ran a few rounds through a new upper I'd assembled and it shot just fine, tried adjusting the set screw, I'd forgotten my tools... got back home, took a look, I couldn't have adjusted the set screw if I'd wanted to, it's on the REAR (facing the rail/shooter), you can't reach it without removing the rail or cutting on the rail for a long-reach allen wrench to fit. Now, if you want to assemble your upper with about two inches of barrel and gas tube exposed so you can fit an allen key into the set screw, that would work, but I don't see any setups like these where I shoot or anywhere else on the internet Oh well. Live and learn.