HANDGUN FRAME SIZE	BARREL LENGTH	SIZE	GUN TYPE EXAMPLES
Small Frame Auto	up to 2.25" barrel	00	Raven, Jennings .22, ect.
Medium Frame Auto	up to 4" barrel	06	Ruger, Colt Mustang, Walther PPK, Kahr K9, Beretta 84/85, Browning BDA .380, etc.
Large Frame Comp Auto	up to 4" barrel	10	Glock 19, Sig P230/228/229, S&W 5926/3913/6906, Springfield Ultra Compact, Colt Officers
Large Frame Auto	4" to 5" barrel	12	12 Glock 17, Colt Gov't, Sig P220/P226, Beretta 92/96, S&W 5906/4006/4506, Ruger P89/P90
Smale Frame Revolver	upt to 2.5" barrel	20	20 S&W J frame (model 60, 63, 640, 649), Ruger Sp101, etc.
Medium Frame Revolver	up to 4" barrel	28	S&W K&L frame (model 10, 617, 19, 66, 686)
Med-LRG Frame Revolver	4" to 6.5" barrel	34	S&W N frame (model 29, 629,625, 667)
.22 Auto/Airgun	up to 6" barrel	52	Ruger MK II, etc.