Aero Precision ATLAS R-ONE KeyMod Handguard

Aero Precision ATLAS R-ONE KeyMod Handguard

Product Code:
Calculated at Checkout
$79.99 - $127.99

MPN: APRA500601A / APRA500602A / APRA500604A / APRA500605A


  • One-piece free float design
  • Full top Picatinny rail for optional attachments
  • Built in anti-rotation tabs
  • KeyMod slots at 3, 6, and 9 o'clock positions
  • Compatible with most low profile gas blocks
  • Quick disconnect sling socket at the 3, 6 and 9 o’clock positions


  • Material: 6061-T6 Aluminum
  • Finish: Black Hard Anodize
  • Actual Length (When Installed):
    • 7-Inch: 7.25"
    • 9-Inch: 9.19"
    • 12-Inch: 12.56"
    • 15-Inch: 14.94"
  • Weight:
    • 7-Inch: 5.12 oz.
    • 9-Inch: 5.92 oz.
    • 12-Inch: 7.84 oz.
    • 15-Inch: 8.96 oz.
    • Mounting Hardware: 4.72 oz.
  • Inside diameter: 1.3"
  • Outside diameter: 1.5"


  • Mil-Spec AR-15 uppers

**The ATLAS R-ONE KeyMod Handguards are NOT compatible with Aero Precision Enhanced M4E1 Upper Receiver with build-in handguard mount.


  • 1x Aero ATLAS R-ONE KeyMod Handguards
  • 1x Barrel Nut
  • 1x Barrel Nut Wrench
  • 1x Mounting Hardware Kit


If you’re looking for the perfect free-floating Handguard for that new build or to upgrade your existing platform, this one is definitely worth a long look. Aero Precision has designed another winner with their Aero ATLAS R-ONE KeyMod Handguard. It’s the latest rail to hit the market in 2018, it’s priced right and gives all the others a run for their money.

Gun Be Nimble. Gun Be Quick.

The ATLAS R-ONE Keymod Rail System has the perfect profile and weight for your lightweight build. However, even if that’s not your bag, the slim profile of this Handguard will make your rifle feel more nimble and faster getting on target. The Aero ATLAS R-ONE KeyMod Handguard will definitely take your rifle to the next level. Also, if you’ve messed around with older free-floating rail systems, they can be a little tricky to attach right. The proprietary Aero Taper Lock Attachment System (ATLAS) solves that problem. A special barrel nut, wrench, mirrored lock-nuts and a wild turnbuckle screw brings everything together straight as an arrow and locked down tight.

Things Have Really Changed

Since the free-floating rail systems appeared, the firearms industry has grown tremendously. Materials have improved, quality has grown, and leading the way Aero Precision has never failed to improve. Their latest improvement is finally here with the ATLAS R-ONE KeyMod Rail System. They changed just a bit over its older brother the ATLAS S-ONE. The one obvious change is a full-length Picatinny rail on top. That gives you more options in mounting accessories, for their still a lot of Picatinny mounted toys around. However, you still get the stability and versatility of tons of KeyMod mounting slots.

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  • Perfect

    Posted by Anthony on 8th Dec 2018

    This is one of the best fitting and best price rail on the market to date. This Handguard is easy to install and fits perfect! It feels great in your hands and is slim and light weight. I’m going to by another one for my next build.

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