Algodoo

GY12 gas operated semi-automatic shotgun.
This one is using gas system designed by j-dewd. The only difference is, that this one uses rotation for locking.

To shoot:
1. Pull the mag in. (mags are refillable, and have 4 shells capacity)
2. Cock the weapon by cycling the bolt. (do it slowly, its easy to break)
3. Pull the trigger.
4. If the mag is empty, remove it using bolt release button - pull it down. (lighter gray part next to a mag housing)

To do a field strip:
1. Unlock the top cover by moving little red lever upwards (it's located in the buttstock).
2. Move the top cover a little to the right and then up, it should be free now.
3. Slide out the bolt group.

To reassemble the weapon just follow these steps in opposite direction.
IMPORTANT The top cover holds the recoil spring in place, so while assembling, make sure that the top cover fits into the cut in the bolt group.

This one works a little to slow, due to the type of mechanism used in it.
Also It shouldn't break too easily, but be gentle with it anyway.

Have Phun.