• Have special air-tight friction mount
• Work in all kinds of weather
• Button moulded into ring

Rain and Snow Proof! Simply the ultimate scope lens protection for hunters and shooters. They're custom fit to your scope, create a watertight, airtight seal and open silently with a touch of your thumb. Objective Lens cover only. Flip-Open Spotting Scope Covers - Designed for extra large objective lenses on riflescopes and spotting scopes. When measuring, carefully measure to the outside diameter of the lens housing. A larger size will accommodate up to .025 difference, slightly undersized (.010) covers will also fit.

Size	Diameter
#1	1.00" (25.4mm)
#2	1.221" (31.0mm)
#5	1.354" (35.2mm)
#7	1.143" (36.3mm)
#9	1.48" (37.7mm)
#10	1.50" (38.1mm)
#11	1.54" x 1.34" (39.1mm x 34.0mm)
#12	(44.7mm x 38.9mm)
#13	1.53" (38.9mm)
#15	1.56" (39.6mm)
#17	1.61" (40.9mm)
#19	1.65" (41.8mm)
#20	1.70" (43.2mm)
#21	1.73" (44.1mm)
#23	1.76" (44.7mm)
#25	1.80" (45.7mm)
#26	1.82" (46.2mm)
#27	1.84" (46.7mm)
#28	1.89" (48.0mm)
#29	1.92" (48.7mm)
#30	1.96" (49.8mm)
#31	2.00" (50.7mm)
#33	2.04" (51.9mm)
#34	2.10" (53.3mm)
#40	2.25" (57.1mm)
#43	2.31" (58.7mm)
#44	2.36" (59.9mm)
#45	2.41" (61.2mm)
#46	2.43" (61.7mm)
#47	2.46" (62.5mm)
#48	2.51" (63.7mm)

Click here to download the Butler Creek sizing charts

Butler Creek Flip-Open Objective Lens & Spotting Scope Covers