The Pro Arms TM PM7 GBB Semi Sear is a precision-engineered gas blowback sidearm designed for UK airsoft players who demand reliability and authenticity in a compact platform. Built around proven TM PM7 internals with Pro Arms’ stainless steel construction, it bridges the gap between casual skirmishing and serious milsim loadouts.
Key Features
- Stainless steel slide and controls – enhanced durability and corrosion resistance
- Gas blowback action – full cycling recoil impulse for training realism
- Semi-automatic sear – precise trigger response and compliance-friendly operation
- Compact 20.5cm frame – ideal for CQB, vehicle ops, and secondary loadouts
- 20mm Picatinny rail – optic and accessory mounting for tactical customisation
- Alloy outer barrel – lightweight yet rigid construction
- Low-capacity magazine – 22-round gas magazine encourages ammunition discipline
Real-World Use Cases
This pistol excels in close-quarters battle scenarios where a compact sidearm offers superior handling to full-length carbines. Milsim players appreciate the authentic blowback action and semi-auto-only operation, whilst CQB specialists value the 20.5cm length for retention and snap transitions. The low-capacity magazine reinforces realistic ammunition management, making it popular in tactical training environments and speedsoft holdouts.
Technical Specifications
- Muzzle Velocity: Approx. 300fps ± 10% (0.20g BBs)
- Firing Mode: Semi-automatic
- Length: 20.5cm
- Inner Barrel: 4.5 inches
- Magazine Capacity: Approx. 22 rounds
- Weight: Approx. 0.55kg
- Rail System: 20mm Picatinny (pistol-height)
- Power Source: Green Gas
- Construction: Alloy outer barrel, slide and controls; steel pins and screws; aluminium magazine well extension; polymer frame and backstrap
- Hop-Up: On outer barrel, accessible when slide is removed
Compatibility & Upgrades
The Pro Arms TM PM7 platform supports a wealth of TM-compatible internals and external parts. The 20mm rail accepts standard pistol-height optics, including compact red dots and holographic sights. Gas magazine seals can be refreshed or upgraded for performance tuning, and the semi-sear design allows drop-in installation of alternative trigger assemblies. The alloy construction also permits anodising and coating customisation for aesthetic variation.
UK Legal & Site Notes
This pistol meets UK airsoft legal requirements under the VCRA as a two-tone replica or when coloured in non-black finishes. Always notify your site marshals of the semi-auto-only firing capability and low magazine capacity beforehand. Check individual site rules on sidearm limitations; some milsim events enforce realistic load-outs or restrict secondary weapons in specific game modes. Green gas performance is weather-dependent, so carry a spare magazine or gas supply for extended skirmishes in cooler conditions.
Built for reliability, authenticity, and tactical efficiency, the Pro Arms TM PM7 GBB Semi Sear deserves a place in any serious loadout. In stock now at Airsoftdirect – order today and elevate your secondary game.











