March 2026 AT3 Tactical x Rise Armament 3-Gun Rifle Build Kit – Match-Ready AR-15 Build
Features
- Competition-focused AR-15 parts kit built for speed, control, and reliability
- 16″ 5.56 NATO pencil profile barrel balances lightweight handling with practical match performance
- Rise Armament RAVE 140 flat trigger delivers a fast, consistent break for quicker follow-up shots
- Rise Armament low-mass nickel boron BCG and ambidextrous charging handle support faster operation and smoother cycling
- Faxon adjustable gas block allows tuning for recoil control and ammunition flexibility
- AT3 Red Tail 1-6×24 LPVO with offset ACE red dot supports both close targets and distance stages
- STNGR 15.5″ VLCN free float handguard provides extended support-hand space and accessory mounting
- Ambidextrous controls and upgraded lower components improve handling under stage pressure
This AT3 Tactical x Rise Armament rifle kit was built around what matters in a 3-gun style setup: fast transitions, clean recoil impulse, and dependable performance when the timer is running. The 16″ pencil barrel keeps the front end light, while the adjustable gas block, low-mass carrier, and Stealth Recoil Spring work together to deliver a flatter, more controllable shooting experience. Add in a crisp Rise trigger, ambidextrous controls, a 1-6x LPVO, and an offset red dot, and this package gives shooters a well-rounded competition-ready foundation without piecing the rifle together one upgrade at a time.
Note: This kit is based on the March 2026 AT3 Tactical giveaway rifle configuration. Final assembly is up to you. Parts and accessories are subject to change due to unforeseen shortages or compliance changes. Any alterations will be of equal or greater value and will be noted in this product listing.
Specifications
- Collaboration: AT3 Tactical x Rise Armament
- Platform: AR-15
- Caliber: 5.56 NATO
- Barrel Length: 16″
- Barrel Profile: Pencil
- Gas System: Mid-Length
- Handguard Length: 15.5″
- Handguard Type: Free Float M-LOK
- Upper Receiver: Billet Slick Side
- Lower Receiver: Forged
- Bolt Carrier Group: Low-Mass, Nickel Boron
- Gas Block: Adjustable (.625″)
- Muzzle Device: Fortis Control Muzzle Brake
- Trigger: Single-Stage Flat (Rise Armament RAVE 140)
- Recoil System: Armaspec Stealth Recoil Spring (H1)
- Stock: Minimalist Adjustable Stock
- Grip: Ergonomic Polymer Grip
- Primary Optic: 1-6×24 LPVO with Illuminated BDC Reticle
- Secondary Optic: Offset Micro Red Dot
- Controls: Ambidextrous Safety and Magazine Release
What’s Included
Upper Assembly Components:
- AT3 Slick Side Billet Upper Receiver
- STNGR VLCN 15.5″ M-LOK Free Float Handguard
- AT3 16″ 5.56 NATO Pencil Profile Barrel (Mid-Length Gas)
- Fortis Control Muzzle Brake – 5.56 NATO – Black Nitride (Control Shield Compatible)
- Rise Armament Low-Mass Nickel Boron Bolt Carrier Group
- Rise Armament Ambidextrous Charging Handle – Black
- Faxon Adjustable Gas Block – .625″
- AT3 Stainless Steel Mid-Length Gas Tube
- STNGR Minimalist M-LOK Barrier Hand Stop
- Strike Industries Ultimate Dust Cover – Black
Lower Assembly Components:
- AT3 Tactical AT-15 Forged Lower Receiver – Black
- AT3 Enhanced Trigger Guard Assembly
- Rise Armament RAVE 140 Gen 2 Flat Trigger with Anti-Walk Pins
- CMMG ZEROED Ambidextrous Safety – 60°/90°
- CMMG ZEROED Ambidextrous Magazine Catch and Button Kit
- CMMG ZEROED Extended Bolt Catch
- AT3 Takedown and Pivot Pin Assembly – Black
- AT3 FU-BAG Lost Parts Kit (Springs, Detents, Small Parts)
Buffer System & Furniture:
- AT3 Mil-Spec Buffer Tube – Black
- Armaspec Gen 4 Stealth Recoil Spring – H1
- AT3 Castle Nut – Black
- AT3 Mil-Spec End Plate – Black
- Mission First Tactical Extreme Duty Minimalist Stock – Black
- Mission First Tactical ENGAGE Pistol Grip (EPG16) – Black
Optics & Mounting:
- AT3 Red Tail 1-6×24 LPVO with Mount – 5.56 BDC Reticle
- AT3 ACE Red Dot – Red Reticle
- UTG Super Slim 45° RMR Offset Mount
Magazines & Accessories:
