UTAS 516 M4A1 Block II STRAIGHT PULL 14.5″ – 223 REM/5.56 NATO

A Modern M4A1 Block II-Inspired Straight-Pull Rifle Built for Precision, Control & Compliance

The UTAS 516 M4A1 Block II Straight Pull 14.5″ – 223 Rem / 5.56 NATO delivers the iconic military-inspired M4A1 Block II appearance with a reliable straight-pull bolt-action system. Designed for shooters seeking tactical ergonomics in a manually operated platform, this rifle provides AR-style modularity, fast cycling, and excellent accuracy — all while remaining compliant in restrictive jurisdictions.

The combination of a 14.5″ precision barrel, lightweight handguard, and sturdy upper/lower construction makes it a versatile choice for target shooters, training applications, and tactical-style marksmanship practice.

Straight-Pull Operation for Smooth, Fast Manual Cycling

Unlike traditional bolt-action rifles, the UTAS 516 uses a straight-pull system that allows the shooter to cycle the action directly rearward and forward without rotation. This provides:

• Faster cycling than traditional bolt actions

• Minimal movement between shots

• Improved control for rapid follow-up shots

• A natural, intuitive shooting rhythm

This design is ideal for shooters who want the feel of an AR-style rifle but in a non-semi-automatic configuration.

M4A1 Block II Styling With Modern Enhancements

The rifle captures the distinctive look of the M4A1 Block II platform, featuring:

• Lightweight M-LOK handguard

• Flat-top Picatinny receiver for optics

• 14.5″ barrel optimized for handling

• Ergonomic pistol grip

• Modern polymer buttstock (model may vary)

The result is a civilian-legal rifle with an authentic Block II profile and practical features for real-world shooting.

14.5″ Precision Barrel — Compact, Fast, and Accurate

The barrel is engineered for reliability and precision, offering:

• Proper 5.56 NATO/.223 Rem chamber compatibility

• Excellent balance for dynamic shooting

• Quick barrel harmonics for stable accuracy

• Suppressor and muzzle device compatibility (per threading spec)

Its compact length enhances maneuverability while still delivering reliable ballistic performance.

Full AR-Style Modularity

Even as a straight-pull platform, the UTAS 516 supports the familiar AR-15 ecosystem:

• M-LOK accessory compatibility

• Adjustable buttstock

• Standard AR-style grip interface

• Picatinny top rail for scopes & red dots

• Sling attachment options

This allows shooters to configure the rifle for training, competition, or tactical precision.

Ideal for Tactical Training, Range Work & Modern Rifle Enthusiasts

The UTAS 516 M4A1 Block II Straight Pull is a great option for:

• Training in semi-auto–restricted environments

• Learning AR-15 handling fundamentals

• Precision shooting with manual cycling

• Recreational and tactical-style range use

• Shooters who want M4A1 aesthetics with legal compliance