first-issue M16 triangular forearms

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12 years 6 months ago #11645 by rattinox
first-issue M16 triangular forearms was created by rattinox
I absolutely cannot stand the current crop of round forearms, they drive me buggo. :angry:

I have an old triangular style for the M-16, and a few of the handguard caps to fit.

Has anybody tried this stunt on an Armalite AR-10A2BF?

Either way, the round handguard gets the dumpster.

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12 years 6 months ago #11647 by jtallen83
Replied by jtallen83 on topic Re: first-issue M16 triangular forearms
They should fit with no issue, I've seen pictures but not actually tried it myself. If I understand correctly these are some of the parts that are interchangable between the ar-15 and the AR-10. Thanks for your input on the powder for cold weather!

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12 years 6 months ago #11649 by rattinox
Replied by rattinox on topic Re: first-issue M16 triangular forearms
The only part of installing that handguard that I'm not looking forward to is removing the gas block- a real butt-pain from what I've seen. But it only needs to be done once, I suppose.

At the very least, it will make one Hell of a distinctive AR-10A2!!

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12 years 6 months ago #11650 by WES213
Replied by WES213 on topic Re: first-issue M16 triangular forearms
If you don't mind i would like to see some pics when and if you do this.

Not a big fan of the stock grip myself.

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12 years 6 months ago #11652 by rattinox
Replied by rattinox on topic Re: first-issue M16 triangular forearms
I'll get some pics up when I can. I've been mooching other people's digital cameras for years :whistle:

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12 years 6 months ago - 12 years 6 months ago #11655 by LebbenB
Replied by LebbenB on topic Re: first-issue M16 triangular forearms
There might also be a dimensional difference at the barrel nut and slip ring, to accomodate the larger diameter 7.62 barrel vice the 5.56 barrel of the M16. That's just thinking off the top of my head, though. Stock photos of the AR10A2 show a triangular end cap, so you might be in luck there, without having seen pics of your particular rifle.

EDITTED TO ADD: Taking off the gas block isn't hard. Putting it back on is where the pain-sweat-profanity comes in. Just make sure to put witness marks on the block and barrel to ensure you re-index the gas ports correctly. Do the same when removing the flash hider/comp so you get the timing right. And don't re-use the pins from the gas block; use new ones.
Last edit: 12 years 6 months ago by LebbenB.

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12 years 6 months ago #11827 by rattinox
Replied by rattinox on topic Re: first-issue M16 triangular forearms
Thanks for the tip!

I did find the triangular fore-grip caps:

e-sarcoinc.com/ar15m16handguardcaptriangular.aspx

Trust Sarco to stock the weird and arcane!

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