Butler Creek Flip Open Covers are simply the ultimate scope lens protection. Custom-fit to your scope to create a watertight, airtight seal. Opens with a touch of your thumb.

Silent hinges wont spook game. Less than 1oz in weight.

Measure the outside diameter of the objective end of the scope. Fit range is .01 under to .25 over these measurements.

Objective Lens Cover Size Chart:

17 Objective – 40.9mm
19 Objective – 41.8mm
20 Objective – 43.2mm
21 Objective – 44.1mm
23 Objective – 44.7mm
25 Objective – 45.7mm
26 Objective – 46.2mm
27 Objective – 46.7mm
28 Objective – 48.0mm
29 Objective – 48.7mm
30 Objective – 49.8mm
31 Objective – 50.7mm
33 Objective – 51.9mm
34 Objective – 53.3mm
39 Objective – 56.4mm
40 Objective – 57.2mm
43 Objective – 58.7mm
44 Objective – 59.9mm
45 Objective – 61.2mm
46 Objective – 61.7mm
47 Objective – 62.5mm
48 Objective – 63.5mm