Did I screw up?

[Slatewiper]

I completed my first build recently. It's an FDE build with a 10" Troy rail. About 1/2" of the gas block sticks out beyond the end of the rail. Is this a big deal? Should I pony up for a 12" rail to replace it? One problem is I probably won't be doing anymore FDE builds and I don't use barrels with a carbine length gas port so I doubt I would find any use for the rail I replace.

[Onyx Z]

You should be fine. The Mk12's the military used have the entire gas block just beyond the end of the rail.

[Airhasz]

As long as the look doesn't bother you it will function fine. Exposed gas block will burn your hand, keep that in mind.

[markm]

Not a problem at all.

[1911-A1]

The only issue I see is the potential for putting your fingers on the gas block or barrel, but that depends on how long your arms are, how you hold your gun, etc. Me, I manage to burn my fingers on just about anything possible when I'm shooting and moving, in weird positions, etc.

Or, you can just wear gloves all the time. I don't always, hence my preference for longer handguards.

[djegators]

For the most part an aesthetics issue...if it bothers you enough, then swap it out and sell the shorter rail...you should get a good portion of your money back.

[Talon167]

Yea, it's fine. Just don't touch it. Did that once on my 516... once.

[thabends]

Yea, it's fine. Just don't touch it. Did that once on my 516... once.

This.

[BrigandTwoFour]

The first one I built did the same thing. Except I actually did that intentionally because I liked the front of the gas block peeking out. I later revised that upper and went to a 12" rail for a different reason, though. You will be fine; shoot it and enjoy.

[M&P15T]

OP, only you can answer your question.

[Hemoglobin]

I'll second the burn thing. I had always read to practice with gloves on, but I never did. I shot a friends FSB Socom II and managed to touch that freaking thing every time I moved. Now keep in mind I shoot a SBR 95% of the time and have T-rex arms, but I have now just started shooting with gloves at least once a range trip. It's going to depend on you.

[Slatewiper]

OP, only you can answer your question. I don't mind too much how it looks I just didn't know if it was advisable.