for glock rear ambi speed slide racker back plate mos optics silver for gen 1-5 most models - plain  the ndz performance rear slide racker cover plate silver for glock gen 1-5 17 17l 19 20 21 22 23 24 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41. this plate offers users a more durable component while providing custom functionality through the option of rear plate slide racking. these plates were originally designed to be used in tandom with glock mos optics since the issue arised that many shooters were having trouble pulling the slide back to rack while not interfering with their mos optic sights, but these are also perfect for those who have trouble racking their slides in general, such as those with arthritis or those with smaller hands. there are few competitors who have even begun to offer similar styled plates, but they are either made of flimsy material that might not hold up to the constant stress of racking or require additional screws to secure. our plates are one solid piece of t6 aluminum, and offer an ambi-dexterous option to rack from either or both sides. please note: the amount of surface area for the grip tabs will vary based on the slide being use. available in multiple colors with laser engraved designs to make identifying your firearm easy, match with any of our other products such as magazine releases, magazine floor plates, or grip plugs. manufactured to exact tolerances from 6061 t6 aircraft billet aluminum and color anodized for extreme durability; will not chip or break. ndz performance is a usa manufacturer of high quality aftermarket accessories. proudly made right here, in our facility, to the highest quality standards with a lifetime warranty against manufactured defects. disclaimer - "glock" is a federally registered trademark of glock, inc. or glock ges.m.b.h. ndz performance has no affiliation in any manner with, or otherwise endorsed by, glock, inc. or glock ges.m.b.h. the use of the word "glock " on this page is merely to identify which firearm these parts or components are compatible with.