Pantheon Arms Prometheus AR15 Takedown Kit w/SC Handguard Black Oxide/Anodize. Installing this kit on an existing AR15 or new build will allow you to drastically decrease the footprint of your AR rifle or pistol for efficient storage or discreet transport with a repeatable zero each time it is assembled. To add an additional barrel setup for caliber changes etc. you will need to purchase an additional handguard kit or lock collar. Note: The holes machined into this handguard will accept MLOK accessories. To time the handguard you will need a Yankee Hill Machine Jam Nut (YHM-9433). Take a look at our MC or MM handguards with an integrated picatinny rail. Specifications for Pantheon Arms Prometheus Take-Down Kit w/Handguard For AR-15: Manufacturer: Pantheon Arms Color: Black Finish: Black Fabric/Material: Steel Gun Make: AR Platform Gun Model: M16 AR-15 Gun Type: Rifle Handguard Length: 6.5 in Gun Rail: Air Flow Only Weight: 3 lb Condition: New Included Accessories: Standard Quantity: 1 Features of Pantheon Arms Prometheus Take-Down System w/Handguard for AR-15: Decrease footprint of your rifle or pistol for safer more efficient storage and/or discreet transport. Allows fast deployment. Repeatable zero each time firearm is re-assembled. Allows barrel changes with various calibers. Easy weapon clearing and cleaning. Fits most mil-spec AR15s. Use for new build or existing pistol or rifle. Package Contents: Pantheon Arms Prometheus Take-Down Kit w/Handguard For AR-15 Pantheon Arms Dolos Standard Lock Collar Pantheon Arms Low-Snag Tri-Lug Assembly Pantheon Arms SC Handguard Pantheon Arms PROSC: Prometheus AR15 Takedown Kit w/SC Handguard Black Oxide/Anodize