HK416D Next Generation Hard Frame Lock Pin Heroshark and a set of timing

and a set of timing shims (please check reference SBA-SIL-06)

and the three-stage contact structure at the front end is thickened

enduring temperatures up to 113°C

The TTI Airsoft stock adapter is designed to work specifically with the Action Army AAP-01 gas airsoft pistol

HK416D Next Generation Hard Frame Lock Pin Heroshark and a set of timingSmooth and easy attach detaching! Prevent getting caught! *Made with enhanced carbon steel material! *Parkerizing surface processed to match the real feature! Frame lock pin are often lost when the O ring of the frame lock pin gets caught. This frame lock pin made of enhanced carbon steel material and O ring lock system, it is smooth and easy when attaching detaching Parkerizing surface processed to match the real feature of HK 416D.