Poseidon Striker Hop Up Chamber Kit for For UMAREX Glock 17/18 Gen3 Ver. ( w/ Inner Barrel and Hop Up Bucking ) Inner Barrel Length Size (mm):97mm ( G17 ) * The PTS Masada AEG

* The PTS Masada AEG Handguards are fully compatible with the new PTS Masada GBBR

Coating Multi-layer coating for all lens

- Design for replace the original Sear

P-Process Surface Finish Technology Material: Steel

- Illuminated Reticule

Poseidon Striker Hop Up Chamber Kit for For UMAREX Glock 17/18 Gen3 Ver. ( w/ Inner Barrel and Hop Up Bucking ) Inner Barrel Length Size (mm):97mm ( G17 ) * The PTS Masada AEGPoseidon Striker Hop Up Chamber Kit for For UMAREX Glock 17 18 Gen3 Ver. ( w Inner Barrel and Hop Up Bucking ) CNC Milled 6061 Aluminum Anodized Aluminum Process For UMAREX Glock 17 18 Gen3 Ver. Kit includes: Poseidon Striker Hop Up Chamber Set Inner Barrel ( Size Opt. ) Poseidon Hop Up Bucking 50