Davidson Defense Rampage II 16-inch 1:16 .45 ACP AR-45 Freefloat M-Lok Handguard Rifle Upper Build Kit

Rampage II 16-inch 1-in-16 .45 ACP AR-45 Freefloat M-Lok Handguard Rifle Upper Build Kit

This Davidson Defense Rampage II upper build kit includes a 16-inch .45 ACP government-profile barrel, a 15-inch freefloat M-Lok handguard with full-length Picatinny rail, and a Panhead billet upper receiver in 6061-T6 aluminum. BCG and charging handle are not included. This is a blowback-operated platform.

Key Features

• 16-inch 4150 CrMoV government-profile barrel in .45 ACP, 1-in-16 twist, black nitride finish, .578x28 thread pitch
• Blowback-operated platform
• 15-inch freefloat M-Lok handguard with full-length Picatinny rail
• Panhead billet upper receiver, 6061-T6 aluminum, anodized finish
• BCG and charging handle not included

Perfect For

• Builders adding a .45 ACP upper assembly to an existing AR-45 lower
• Those seeking a Panhead billet upper receiver with a freefloat M-Lok handguard and full-length Picatinny rail
• Owners pairing a government-profile barrel with a separately sourced BCG and charging handle on the AR-45 platform
• Those sourcing a BCG and charging handle separately for a .45 ACP upper build

Barrel and Handguard

The 16-inch barrel is constructed from 4150 CrMoV steel in a government profile with a black nitride finish and a 1-in-16 twist rate. The thread pitch is .578x28. The 15-inch freefloat M-Lok handguard features a full-length Picatinny rail and keeps the handguard clear of the barrel along its full length.

Upper Receiver

The Panhead billet upper receiver is constructed from 6061-T6 aluminum with an anodized finish. It pairs with the barrel and handguard included in this kit. A BCG and charging handle are not included with this upper build kit and must be sourced separately.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. BCG and charging handle are not included.