Grab this G&P kit for the Western Arms Gas Blobwack rifle at eHobby Asia. This will cost you US$77.00... "All parts are made by aluminum alloy with special treated to enhance its strength & durability. This set covered much of all internal parts of Western Arms M4 Series Gas Blow Back Airsoft Rifle. Assembly your perference externals, pick your own bolt set and this frame set kit sort out all the other parts for you.

Frame Set Reinforced Upgrade Parts Include (Please refer to reference photo):

1. WA Selector/Pin/Spring
2. WA Bolt Stop/Spring/Pin,Firing Block/Pin,Firing Pin/Spring
3. WA Forward Assist/Springs/Pins
4. WA Trigger/Spring/Pin, Sear/Spring
5. WA Magazine Catch/Spring, Trigger Guard
6. WA Hammer,120% Hammer Spring, Hammer Pin Set
7. WA Hammer Lock Set
8. WA Buffer Lock/Spring, Buffer Retainer Block, Bolt Rubber, Grip Screw
9. WA M4 Dust Cover Set"