Alexander Arms Tactical Complete Upper – .50 Beowulf® for AR-15
16" Barrel • Black Cerakote® Aluminum Receiver • Free-Float M-LOK® Handguard
Model: UTA50 • UPC: 819511021660
Turn your standard AR-15 lower into a hard-hitting big-bore powerhouse. The Alexander Arms Tactical Complete Upper in .50 Beowulf® (UTA50) delivers massive close-to-midrange energy, exceptional barrier performance, and simple plug-and-play compatibility with your mil-spec AR-15 lower. Anchored by a 16" barrel and finished in a durable Black Cerakote®, this complete upper ships with a lightweight, rigid free-float M-LOK® handguard for rock-solid accessory mounting and consistent point of impact. If you’re building a brush gun for hogs, a truck rifle with serious punch, or a range thumper that drops steel with authority, this is the upper that made .50 Beowulf® famous.
Quick note: “Complete upper” packages from Alexander Arms typically include the bolt carrier group and charging handle; always verify included components with your retailer before purchase.
Why Choose the Alexander Arms .50 Beowulf® Upper
True, Original .50 Beowulf®
Designed and built by the company that originated the cartridge, optimized for feeding reliability, chamber geometry, and gas timing in the AR-15 platform.
16" Big-Bore Barrel
The proven length for maximum versatility—excellent handling in tight cover while maintaining the velocity you want for heavy bullets.
Black Cerakote® Durability
A tough, corrosion-resistant finish on the aluminum receiver and key components that stands up to field abuse, rain, and hard training days.
Free-Float M-LOK® Handguard
Slim, rigid, and accessory-ready: attach lights, grips, sling QD cups, or a bipod without affecting barrel harmonics for repeatable accuracy.
Plug-and-Play with AR-15 Lowers
Pins onto a standard mil-spec AR-15 lower—no special receivers required. Use .50 Beowulf-specific magazines (or appropriately marked 5.56 mags with reduced capacity) for best reliability.
Suppressor/Muzzle-Device Ready
Factory-threaded muzzle for brakes, comps, or suppressor mounts (verify thread pitch for your production run).
Key Specifications
Platform: AR-15 (upper assembly only)
Caliber: .50 Beowulf®
Barrel Length: 16 inches
Receiver: Aluminum, Black Cerakote® finish
Handguard: Free-float M-LOK® (tactical slim profile)
Model / UPC: UTA50 / 819511021660
Muzzle: Threaded from factory (confirm exact thread pitch with retailer/manufacturer)
Compatibility: Fits mil-spec AR-15 lower receivers; uses .50 Beowulf-compatible mags for best performance
Package Contents: Some “complete upper” bundles include a BCG and charging handle; specific inclusions may vary—confirm before checkout.
What .50 Beowulf® Does Best
Crushes Close-Range Barriers
Heavy, large-diameter bullets deliver decisive terminal effect on hogs and other tough targets where legal, and smack steel with authority.
Brush & Timber Performance
The 16" configuration moves fast in dense cover while the big-bore momentum helps maintain energy through light vegetation and intermediate obstacles.
Short-to-Midrange Confidence
Optimized for 0–200 yards (and beyond with proper dope), it’s a superb choice for thick-cover hunting, ranch rifles, and defensive roles where stopping power matters.
Performance Benefits You’ll Notice
Consistent Point of Impact
The free-float M-LOK handguard keeps sling and grip pressure off the barrel so your zero holds through positional changes and longer strings.
Better Control, Faster Follow-Ups
Threaded muzzle lets you add a recoil-reducing brake or comp to manage the thump and keep the dot/reticle flatter between shots.
Weather-Hard Reliability
Cerakote on the receiver offers excellent corrosion resistance, while Alexander Arms’ gas system and feed geometry are tuned for .50 Beowulf® reliability.
Setup & Compatibility Tips
Lower Receiver: Standard AR-15 mil-spec lowers work great. Ensure a quality buffer and spring; some users prefer heavier buffers to soften impulse.
Magazines: Use .50 Beowulf-specific mags or clearly marked 5.56 mags dedicated to this caliber to avoid mix-ups.
Muzzle Devices: Confirm the thread pitch on your specific barrel before purchasing a brake or suppressor mount.
Optics: Red dots and 1-6× / 1-8× LPVOs are excellent choices for the cartridge’s effective range.
Recommended Use Cases
Hogs & Large Varmint (where legal): Heavy bullet weights for deep, controlled penetration.
Ranch/Truck Rifle: Serious barrier performance and decisive impact at practical distances.
Range Authority: Big-bore excitement with a reliable, original-spec upper from the inventors of the cartridge.
Ammunition Guidance
Bullet Weights: Common .50 Beowulf® loads range widely; match bullet type (JHP, solid, bonded) to your task.
Zero Strategy: A 50/150-yard or 100-yard zero is popular; chrono your load and confirm drops.
Label Everything: Keep ammunition and magazines clearly labeled to prevent cross-loading with 5.56 gear.
Care & Maintenance
Break-In: Clean and lube prior to first use; re-torque any user-serviceable fasteners per manufacturer guidance.
BCG & Gas System: Keep contact points lightly lubricated; big-bore fouling benefits from regular wipe-downs.
Handguard & Screws: Periodically verify torque after heavy recoil sessions.
Finish Care: Wipe the Cerakote with a soft cloth; avoid harsh abrasives.
Frequently Asked Questions
Q: Will this upper fit my AR-15 lower?
A: Yes—mil-spec AR-15 lowers are compatible. Ensure a quality buffer/spring and use .50 Beowulf-appropriate magazines.
Q: Does it include a bolt carrier group and charging handle?
A: Many “complete upper” packages do, but confirm contents with your retailer for the UTA50 you’re purchasing.
Q: What muzzle thread does it use?
A: .50 Beowulf® barrels are commonly shipped with a large-bore thread; verify the exact pitch on your upper before buying devices.
Q: Effective range?
A: Optimized for close to midrange work; with proper ammo and optic, confident hits to 200+ yards are achievable.
Q: Do I need special magazines?
A: For best reliability, yes—use .50 Beowulf-labeled mags or clearly marked dedicated magazines.
SEO Highlights (Quick Scan)
Alexander Arms Tactical Complete Upper .50 Beowulf® for AR-15
16" barrel, Black Cerakote aluminum receiver, free-float M-LOK handguard
Model UTA50, UPC 819511021660 – big-bore performance, plug-and-play compatibility
Threaded muzzle (verify pitch), optics-ready, ideal for hog hunting, ranch rifles, and range fun
Built by the originators of .50 Beowulf® for tuned reliability and performance
The Bottom Line
The Alexander Arms Tactical Complete Upper (UTA50) is the fastest, most reliable way to experience .50 Beowulf® on your AR-15. With a 16" threaded barrel, Cerakote-protected receiver, and M-LOK free-float handguard, it’s a rugged, optics-ready upper that delivers the power, accuracy, and compatibility shooters expect from the inventors of the cartridge. Pin it on, load dedicated mags, and let the big bore do what it was made to do.
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