Just fittted the Tracer Stinger to my fn12 today and am very impressed with the power of this little lamp and also fitted a brass trigger guard to the fn that I got from Bullcelt on this great Bbs..
Some piccies..
http://img9.imageshack.us/img9/5458/dsc0002u.jpg
http://img27.imageshack.us/img27/8132/dsc0007c.jpg
http://img27.imageshack.us/img27/8931/dsc0006i.jpg
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