Mid length piston kit under rifle length handguard

[BajaJames83]

I have a few parts laying around and wanted to put together a fake dissipator upper.
I'm have a 16" middleweight barrel with the older adams arms low profile piston kit. I would like to do an A2 front sight with the magpul rifle lenght hand guard.

I am wondering if the adams arms piston gas block will fit under the magpul handguard.

Or if it will fit under another rifle length hand guard.

[ar15barrels]

You might have to remove the heat shields to clear the gas block.

The bigger issue is mounting a FSB at the rifle position on a typical 16" midlength barrel.

[damon1272]

New adams arms gas block will fit underneath.

[xxINKxx]

So it will be a piston dissipator build?

[CouchOperator]

So the fsp will just be there doing nothing?

[ar15barrels]

So the fsp will just be there doing nothing?

The fsb will be holding the front sight post and the handguard cap.

[Tac driver]

How about a clamp on FSB? A.R.M.S., DEZ, JP, or Armalite.

[ar15barrels]

How about a clamp on FSB? A.R.M.S., DEZ, JP, or Armalite.

Clamp-on works fine if the barrel is the correct diameter.
It's very uncommon that a barrel is the correct diameter forward of the primary gas block seat though.
It normally requires a specially contoured barrel to have two gas block seats on it to make a proper dissipator setup.

[Mossy Man]

I had mine set up similarly (not piston though) with an Armalite clamp on A2 fsb, 16" barrel, and a low profile has block at the mid position.

It ran fine, but it was HEAVY. I'd imagine a piston version would be even worse.

I gave it up because the increased sight radius/hand guard length just wasn't worth the extra weight.

[protohyp]

don't let that piston gas block touch any plastic

[caliguy93]

I bought this from PSA and swapped the handguard with an a2 triangular handguard. Then I swapped the receiver for an a1 receiver.

They had a standard low profile gas block in it and it fit under the magpul handguard but when I swapped to the a2 triangular handguards, I had to cut away the metal heat shields around the gas block.

http://palmettostatearmory.com/psa-16-mid-length-5-56-nato-1-7-nitride-moe-dissipator-upper-olive-drab-green-no-bcg-or-ch-516445356.html

[mlevans66]

I have a few parts laying around and wanted to put together a fake dissipator upper.
I'm have a 16" middleweight barrel with the older adams arms low profile piston kit. I would like to do an A2 front sight with the magpul rifle lenght hand guard.

I am wondering if the adams arms piston gas block will fit under the magpul handguard.

Or if it will fit under another rifle length hand guard.

If you need a lo pro pistol gas block for the adams I have one to sell cheap. Just IM me.