Matt this is the one with the Slim Light Weight Key-Mod Handguard

Slim Light Weight Key-Mod Handguard. (Specifications and Features): - Ruger SR-556 Takedown 5924 - AR-15 Style Semi Automatic Rifle - 5.56 NATO accepts .223 Remington - 16.12" Cold Hammer Forged Barrel with 1:8 Twist - Chrome Lined MIL-Spec 41V45 Chrome-Moly-Vanadium - Threaded 1/2"x28 TPI with Ruger Flash Suppressor - Black Manganese Phosphate Barrel Finish - 30 Rounds - Chrome Plated Two Stage Piston - Ruger Elite 452 Two Stage AR-Trigger with 4.5 lb Pull - Slim Light Weight Key-Mod Handguard - Adjustable Folding Iron Sights - Magpul MOE Collapsible Stock - Black Anodized Finish - Overall Length 32.75" to 36" - Length of Pull 11.10" to 14.40" - Weight 7.1 lbs .