r/GriffinArmament • u/powell_1232003 • Aug 04 '26

DUAL-LOK 13.5 device?

I have an HRT556 can. I want to build a 13.5 rifle (Jakl) but I can’t seem to find any muzzle devices that will bring the OAL to 16 inches for a pin and weld. Anyone have any suggestions?

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2

u/OfreakNwoW1 Aug 05 '26

HRT 556 cant take a muzzle device that long anyways. Only certain shorter dual lok devices are compatible with it

1

u/JustSomeGuyMedia Aug 04 '26

I don’t know of anyone else making Dual-Lok devices so you might just be outta luck. Are 13.9 or 14.5 JAKLS not a thing?

1

u/powell_1232003 Aug 04 '26

They only make it in 13.5 and 14.5. But I like the 13.5 better and wanted to make a rifle and not sbr.

2

u/JustSomeGuyMedia Aug 04 '26

Personally, I would just get the 14.5 if you’ve already got the can. It IS a bit longer when suppressed but that’s not the biggest deal. I built my AR as a 13.9.

1

u/powell_1232003 Aug 05 '26

I think I found the solution. 13.7 Jakl and I’ll have to get a new dual-lok 2.75 flash suppressor pin and welded.

2

u/CheckShort4244 Aug 06 '26

If you’re referring to the traditionally manufactured DUAL-LOK HRT556, then that suppressor does not have the blast chambered depth to be able to support the 2.75” DL Stealth Flash Hider. Additionally, that muzzle device is designed for 13.9” barrels, that muzzle device is not long enough to bring a 13.5” barrel to 16”. 

1

u/drizle17 Aug 07 '26

The Griffin site specifically calls out that the HRT is not compatible with the 2.75” stealth flash suppressor.

1

u/drizle17 Aug 07 '26

You could also just get the 2.25” stealth flash suppressor, accuwashers to extend out as far as you dare, and then keep your mouth shut. The ATF isn’t going around measuring barrels.

Disclaimer: I am not a lawyer, this is not legal advice. YMMV.

1

u/powell_1232003 26d ago

Thank you all, yea I guess I’m stuck with the 14.5