These are not my videos but I found them helpful and you might also.
CZ 452 RIFLE .22 MAGAZINE STRIPDOWN.
http://www.youtube.com/watch?v=Yj5BI6tVcqU
CZ 452 .22lr HMR RIMFIRE RIFLE BOLT STRIPDOWN DISASSEMBLY
http://www.youtube.com/watch?v=8Ps1aBudD...EAE83DAFD676EF2
CZ 452 22lr HMR RIMFIRE RIFLE TRIGGER UPGRADE KIT Pt 1.
http://www.youtube.com/watch?v=7oLroeN2ODM&feature=plcp
CZ 452 22lr 17 HMR RIMFIRE RIFLE TRIGGER UPGRADE E BROOKES YoDAVE Pt2
http://www.youtube.com/watch?v=HxV1pGVs9-c&feature=plcp
CZ 452 RIFLE .22 MAGAZINE STRIPDOWN.
http://www.youtube.com/watch?v=Yj5BI6tVcqU
CZ 452 .22lr HMR RIMFIRE RIFLE BOLT STRIPDOWN DISASSEMBLY
http://www.youtube.com/watch?v=8Ps1aBudD...EAE83DAFD676EF2
CZ 452 22lr HMR RIMFIRE RIFLE TRIGGER UPGRADE KIT Pt 1.
http://www.youtube.com/watch?v=7oLroeN2ODM&feature=plcp
CZ 452 22lr 17 HMR RIMFIRE RIFLE TRIGGER UPGRADE E BROOKES YoDAVE Pt2
http://www.youtube.com/watch?v=HxV1pGVs9-c&feature=plcp
