80 lb child's crossbow

https://drive.google.com/folder/d/0B4Dp009Fgn7KWlJ4X1pYcmVQMWc/edit

Cocobolo body, maple burl riser and stock. The spring is two limbs of osage, hickory and .050 glass with cocobolo tips. It has a simple two piece trigger but it works very well for a number of reasons. The trigger is open enough to accept two fingers but the pull is only about 8 lbs. The one peice trigger and catch is made from a heavy 1" slab of stainless and has a huge amount of leverage. The trigger stop safety clicks into place with a solid positive sound and works flawlessly. It's still an open nut bow and there's no safety for stupid. 

I have to say I really enjoy this little bow and have worn out a quickly made string testing it out. It's deadly accurate with 16" bolts out to about 40 yards which is where the 300 grain arrows start to drop past the sight point. This could be overcome with a taller sight but I can't see much point trying to shoot long range with such a little bow. 80 lbs, 8" power stroke, 29" ntn...maybe in the 130-150 fps range? The straight wood bow is surprisingly snappy and it has virtually no rail friction on the serving. Safety only comes off to shoot.

That is gorgeous!

Wow. Who is the lucky child? That is one unique and impressive crossbow.
What is the plate with the circular hole on top in back of the lock for? Also, what is the bolt and nut in the bolt clip above right above the tumbler do?
Gnome

Haha..those are the remnant of an attempted auto safety. It was ugly and nearly useless so I stripped it down and went with the trigger lock which is at least sturdy if not exactly sophisticated. I should cover that hole with an emblem or something.

The recipient is a friend's son. He's 14 and an avid outdoors man.