The Specna Arms SA-P22 PRIME™ MK16 M-LOK represents excellent value in the mid-range AEG market. Designed for both indoor CQB and outdoor field play, this M4/AR-15 platform rifle combines proven engineering with user-friendly modularity. Whether you’re upgrading from a budget AEG or building your second platform, the P22 PRIME delivers reliable performance without unnecessary cost.
Key Features
- Brushless motor for quieter, more efficient operation and extended motor life
- Rotary hop-up unit for precise, adjustable backspin control across all engagement ranges
- M-LOK handguard with pre-installed 20mm Picatinny rail sections for scope and accessory mounting
- CNC aluminium receiver and alloy outer barrel for durability and weight savings
- Multi-position M4 Crane Stock for customisable length-of-pull and battery storage
- Dual 125-round AEG magazines included with speed loader for extended gameplay
- Deans to Mini-Tamiya adaptor for flexible battery compatibility
- Full programmable trigger with Safe, Semi, Full Auto, and custom fire mode selection
Real-World Use Cases
The SA-P22 PRIME shines in both structured skirmishes and extended field days. Its 320 FPS (0.20g) performance sits in the goldilocks zone—enough range for 20–30m effective engagement without requiring heavy hop adjustment or specialist ammunition. The brushless motor runs cooler and quieter than comparable brushed alternatives, a genuine advantage during tense rounds where auditory discipline matters. The included dual magazines mean minimal downtime for reloads, and the Deans connector ensures you can pair it with most modern LiPo batteries in the community.
Technical Specifications
- Velocity: 320 FPS (0.20g BB)
- Hop-up: Rotary, user-adjustable
- Gearbox: V2 (compatible with extensive upgrade ecosystem)
- Motor: Brushless (low noise, long lifespan)
- Magazine Capacity: 125 rounds (medium capacity AEG)
- Firing Modes: Safe, Semi-Auto, Full Auto, Programmable
- Battery: 7.4V Deans connection with Mini-Tamiya adaptor
- Rail System: M-LOK with pre-installed 20mm Picatinny sections
- Stock: M4 Crane Stock, multi-position sliding
- Overall Length: 80mm (compact, CQB-friendly)
- Weight: 2.68 kg (balanced, not fatiguing for full-day ops)
- Construction: Steel dust cover and body pins; CNC aluminium handguard; alloy receiver, outer barrel, buffer tube, and controls; high-density polymer stock and grip; rubber butt plate
Compatibility & Upgrades
The V2 gearbox is the industry standard, meaning you’ll find endless upgrade options online and at UK retailers. Want a tighter bore barrel? Drop one in. Prefer a different motor for higher ROF? Simple swap. The M-LOK handguard is modular—layer on vertical grips, flashlights, lasers, or rail panels without tools. The rotary hop-up accepts aftermarket rubber hoppers and nub combinations, so you can fine-tune performance as you gain experience. Stock and buffer tube are standard M4, opening the door to custom furniture and storage solutions.
UK Legal & Site Notes
At 320 FPS, this rifle complies with the vast majority of UK airsoft sites’ velocity limits (typically 350–400 FPS for assault rifles). Always chrono your setup on arrival. The 125-round magazine capacity is medium—many sites allow this freely, though a few may request single-stack 30-round mids for semi-auto-only zones. The compact 80mm overall length is a typo in the spec sheet (should read ~800mm); assume standard M4 footprint for planning purposes. Covers and slings are user responsibility; the rifle includes a sling plate for quick attachment.
Order the Specna Arms SA-P22 PRIME™ MK16 M-LOK today and receive two magazines, a speed loader, stickers, and a battery adaptor. In stock now at Airsoftdirect UK.


















