any recommended muzzle devices for short barreled ARs? obviously a 7 inch of 11 inch makes for a lot of noise with a birdcage, i was thinking maybe a noveske pig would deflect the noise away more?...
i'm not talking something to be pinned and welded

A directional comp like the KX5 does help a little, but ultimately a suppressor is ideal. Anything shorter than 10.3 will be very hard on a suppressor though.

Will still be loud as hell.  Outdoors you may get a little relief, but indoors it is just gonna bounce back at you.  I have a Kineti-Tech on my 10.5 and while it does focus the noise downrange it is still loud.

A Flash Can type muzzle device makes all the difference in the world when it comes to directing the concussion forward. Without one, the concussion is ridiculous for people beside you. I have one of the Spike's Tactical flash cans when they first came out with one. A buddy of mine had a KAK Flash Can and it worked fine. I imagine they all work similarly.

Flash cans / blast diverters make all the difference. I have Midwest, KAK, Guntec and Witt Machine and all do well on short guns.

Get a suppressor...

Personally after wasting money trying to get a 7.5" barrel to have less blast. I'd change to a 10.5"/11.5" barrel and throw on one of these:



Does the flaming pig work? Yeah.. But why not get some extra velocity/less unburned powder? The 4 prong flash hider will also help with flash and concussion imo.

The flaming pig will add atleast 3.5"
The compact BRT Linear Compensator was still loud in doors and had a pretty blinding flash.

This is with a 10.5" barrel and linear comp


VS
This is with an 11.5" barrel and short 4 prong.
[youtube]shorts/WedmTNpP7NI[/youtube]

Same ammo

Suppressor
KX3/KX5
Linear comps like KVP
"Flash cans"

Have all, including several KVPs.
They take the edge off.

I have 2 of these and they work great.

I've been happy with my Levang and Kaw Valley linear comps.

This is what you seek.

https://simplethreadeddevices.square.site/

Open prong flash suppressors don’t have any surfaces facing back to reflect noise/pressure to the shooter.  So in open environments they work similarly to small linear comps and flash cans. The linear comps and flash cans that are simple, lightweight, one-piece don’t do much for flash in darkness. Others with complex parts for flash reduction are almost half the weight or more of a lightweight direct thread suppressor.  Inside, or near hard reflective surfaces a suppressor is best.  The ammo plays a big role in flash. Expensive HD/duty ammo often has flash inhibitors in the propellant. With the right barrel length for cartridge and premium ammo an open prong FH that can mount a suppressor is most useful with or without suppressor. For gun games and top competitors were split times across a stage compound/matter a comp or gas-tuned lightened BCG starts to drive choices away from the pedestrian FH.

Many muzzle devices are high profit margin muzzle jewelry.

How dare you 😆
Attached File

As mentioned, a suppressor.

Still loud, but not as loud. 11.5 is decent, 7.5 is still pretty darn loud.