Mounting an ACI

Aids to accuracy
Angle Cosine Indicator (ACI)
A.R.M.S. Inc
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The ACI is now supplied with or without a mounting ring, and these can be obtained from us to suit optic tubes in diameter 1 inch, 30mm or 34mm.  When ordering, please tell us the size of your tube .
To obtain the correct reading of the cosine numbers, the ACI should be fitted on the tube of the scope and viewed along the scope.
However, if it is not possible to fit the ACI on the scope because of illuminated turrets or mounts which get in the way, then  alternative mounts are available to fit the ACI onto the Picatinny rail. See below.

only use if ACI/ADI will not fit on tube with ring. Rail Drop Mount

Click on either picture to enlarge
Rail Lift Mount. Use if there is space to fit

Angle Cosine Indicator   £167
(Please email or phone 01455 291100 to order, giving us the type and diameter of your optic tube and we will help you to choose the correct mount).

1" or 30mm tube mount  £25
34mm tube mount  £40
Picatinny rail mount (lift type) for ACI  £25
Picatinny rail mount (drop type) for ACI £25 

To order please email  or phone  
01455 291100 
Please ask us to quote you for postage/shipping
VAT applicable unless you are from outside EEC

Global Rifle Tel 01455 291100
all prices subject to VAT unless sent outside EEC