Finally it's done.Took a long time to make this algobox-ready!
Features:
-Tracer Rounds (Red Tips;like 12.7x99mm/.50 BMG)
-Fully functional locking bolt (Up/Down arrow keys to lock/unlock;drag tool to move bolt)
-Striker fired (Drag bolt somewhat smooth or the striker might come out of the front and fire cartridge)
-Trigger & Sear (Hold Return to fire)
-Scope (not working,but with lens cover;there's a little locking level located at the cover's bottom;turnable adjustment knob)
-Laser Pointer below barrel, angle adjustable with dial
-More or less working ammo counter(doesnt count half-used magazines; [Magazine Bullets / Spare Ammo])
-No magazine release,just pull it out.
PRO TIP: Use the 'Disable Rotation' option on the drag tool to put the magazine in there [BOLT MUST BE OPEN] or it'll take AGES
Update 1.1 [1/3/17 12:28]:
-Laser Pointer is now toggleable
-External Recoil spring system improvements