<p>Technical Specifications</p>
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<p><strong>Manufacturer:</strong> Specna Arms</p>
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<p><strong>Series:</strong> FLEX(TM)</p>
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<p><strong>Power Source:</strong> AEG</p>
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<p><strong>Material:</strong> Polymer, metal</p>
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<p><strong>Length:</strong> 410-693 mm</p>
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<p><strong>Weight:</strong> 2055 g</p>
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<p><strong>Muzzle Velocity:</strong> 100 m/s</p>
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<p><strong>Rate of Fire:</strong> 20 BB/s (with 11.1V Li-Pol battery)</p>
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<p><strong>Inner Barrel Length:</strong> 210 mm (6.02 mm)</p>
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<p><strong>Hop-up:</strong> Yes</p>
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<p><strong>Gearbox:</strong> Modified V3</p>
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<p><strong>Bearings:</strong> 8 mm</p>
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<p><strong>Connector:</strong> T-Dean</p>
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<p><strong>Thread:</strong> 14 mm CCW</p>
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<p><strong>Magazine Capacity:</strong> 30 / 80 BBs (mid-cap)</p>
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<p><strong>Fire Modes:</strong> Semi, burst 2, burst 3, full-auto</p>
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<p>Package Contents</p>
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<p>1 × Specna Arms PPK-20 M-LOK FLEX(TM) (SA-J20)</p>
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<p>2 × Mid-cap magazines (30 / 80 BBs)</p>
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<p>1 × User manual</p>
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</ul>
<p>Warning</p>
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<p>Battery and charger are not included.</p>
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<p>Damage caused by using strong springs is not covered by warranty.</p>
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<p>When installing progressive springs, ensure the tighter coil end faces outward from the gearbox.</p>
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<p>Never store the gun with a connected battery.</p>
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<p>Never store the gun with pre-cocking active.</p>
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<p>Always release the piston before storage to prevent spring damage.</p>
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</ul>

























