Gas Block Gap Ok

[coachjenorris]

Changed to a free float rail and it was about 1/4" shorter than my Magpul Carbine rail. The block is in the exact same place it was before, but there is a gap between the block and the rail. Will this be a factor or do I need a longer gas block? Any info/help is greatly appreciated.
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[bamashooter]

It's fine.

[vicious_cb]

If that isnt pinned on then no it isnt fine. Any good knock will put an unpinned gas block like that out of alignment, especially if it that huge.

[rushca01]

I see you’re a newer member. I know you spent your hard earned money on that rail and gas block but...I would seriously consider shit canning that gas block, get a low profile gas block and a longer rail that covers the gas black.

[Clint]

The important dimension for function is the gas block position relative to the barrel gas port and shoulder, NOT the hand guard.

That gas block looks like it could be aluminum, in which case, it needs to go.

[titsonritz]

That gas block looks like it could be aluminum, in which case, it needs to go.

Exactly what I was thinking. Op should throw a magnetic on it.

[vicious_cb]

Exactly what I was thinking. Op should throw a magnetic on it.

It doesnt matter what it made of, the design doesnt exactly scream quality. No offense to the OP but that rifle looks like it pieced from a bargain bin of parts. The gas block would be the least of my worries.

[coachjenorris]

I appreciate the fine responses to my question. The gun was not "pieced" together, it is a Ruger AR556. I know it's not Daniel Defense, but it's my tinker toy that I have just tinkered around with. I have not ever tried to free float a barrel and it came up short. I was trying to learn on my own to do something in order to gain some experience/knowledge. I have since done some more research and will be using a low profile block and 12" guard. Thanks rushca for that HELPFUL info. I didn't know so many people were/are instant experts and never built anything incorrectly.

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[rushca01]

I appreciate the fine responses to my question. The gun was not "pieced" together, it is a Ruger AR556. I know it's not Daniel Defense, but it's my tinker toy that I have just tinkered around with. I have not ever tried to free float a barrel and it came up short. I was trying to learn on my own to do something in order to gain some experience/knowledge. I have since done some more research and will be using a low profile block and 12" guard. Thanks rushca for that HELPFUL info. I didn't know so many people were/are instant experts and never built anything incorrectly.

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I wasn’t trying to be harsh, we all had to start and learn somewhere. If it’s just a tinker toy and nothing more than rock on... There is lots of useful information here, the signal to noise ratio is still pretty good with lots of knowledge people.

You should also pull the BCG group and give it a once over, check for staked gas carrier key. Also check and make sure the castle nut on the receiver extension is staked (it doesn’t appear to be). Those are some basics.

[AndyLate]

In my opinion you will love the longer rail; the carbine length rails are just too cramped, especially if you run a light.

You can go as long as a 15" rail on a 16" barrel without issue, and 13-13.5" is a popular length. I personally would not go shorter than 10". For reference, an M16/AR-15 rifle handguard is 12" and a 10" rail will easily cover your gas block.

Andy