Underworld Arms
16" Aug M-Lok Handguard w/ Top Rail
16" Aug M-Lok Handguard w/ Top Rail
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The Underworld Arms Aug M-Lok handguard is 5.5" long and is machined from T6-6061 with a black anodized finish and includes a top rail for extending the iron sight radius. The handguard includes a black oxide 304 SS locking nut, a black oxide 304 SS mounting nut, and a black polymer centering plug for use during install.
When installed the quick change barrel feature is functional and gas adjustment is accessible, the original grip can be left on or removed.
The UA Aug M-Lok handguard mounts to the barrel using our proprietary hybrid method that takes inspiration from an AR15 style barrel nut and the Aug's locking flash hider nut.
To convert this handguard into a quad rail CQC clone see our rail kit availble here
This 5.5" Aug handguard is designed for standard 16" barrels, if you have a 20in barrel you will need to wait for our longer handguard to be released.
This handguard will fit on A1, A2 and A3M1 receivers, it is not compatible with SA or A3M2 receivers due to their extended top rail.
Installation:
To install the handguard remove your muzzle device, degrease your bayonet lug threads and the mounting nuts to remove all oils, apply rocksett or a similar threadlocker to your bayonet lug threads. Thread on the square locking nut with the unthreaded ID facing the receiver, thread on the wing shaped mounting nut with the wing side facing the receiver. Orient the flats of the mounting nut at the 12 o-clock and 6 o-clock and tighten the nuts together. Slide your handguard on and attach it to the mounting nut with the included 8-32 screws. Be sure to use your choice of thread locker on the screws so they do not back out. Test the barrel's quick detach function, if the handguard rail engages the receiver then unthread your mounting nut a half rotation.
Rocksett has a 24 hour setup time, you do not need to rush the process there is plenty of time to line everything up perfectly.
Dimensions:
Length- 5.5"
Width- 1.7"
Inside Diameter- 1.52"
Weight- 5.8oz
Suppressor and quick mount compatibility:
Any direct thread suppressor 1.5" or less will fit, quick mounts needs to be 1.5" or less to fit. Keymo mounts fit, OSS/Huxworks require the extended flash hider mount or a 3/4" barrel extension, RC2 require a 3/4" barrel extension.
Fits like a glove only wish they had instructions with the box but YouTube is a blessing
Super quick shipping. Product was as described. Packaged nicely.
How many of you would be interested in a mlok compatible grip lug to be able to use your Aug OEM grip as intended with this awesome handgaurd so you could mount your factory OEM Aug fore grip on this and still be able to fold it as well as using the matching grip that came with the gun originally. I designed this item already and would be willing to give it to underworld arms with no strings attached as long as they can produce it for us and bring it to market. Please tell underworld arms you want this so they can make it and offer it with their handgaurds. @underworld arms, I don't seek to make any money off this and simply wanna just see it brought to market, all I ask is it be produced in aluminum, give me credit as the designer and I get to buy the first one and since this is a public comment I do not wish for any compensation for this whatsoever, please everyone tell underworld arms you'd like to see this made. please underworld arms feel free to email me at [****] and I'll turn over the files I have for it thank you
Its on the to do list.
Install was fairly simple especially with some help from YouTube looks amazing still waiting to get to the range to test zero retention of the rail and effect in rifles accuracy but so far seems pretty solid
First off, I absolutely love this handguard. It looks amazing and the addition of M-Lok adds a lot of extra mounting surface. Having a light on the front of the gun removes the barrel shadow from when mounted on the side rail entirely.
Once installed properly it feels very solid and makes the already great AUG platform even better.
Second, the folk at Underworld Arms are great people. I recently got a suppressor gas plug and had to remove the handguard for installation of the new plug. While removing the screws that attach the handguard to the bayonet lug mount, I ended up stripping a few beyond use. I reached out to Underworld's customer service and they sent me out replacement screws the next day! You all are great and I really appreciate the support!
