K-10 & K-11 Gunsights
Relatively easy to find. And usually in N.O.S. condition. Probably due to the fact that these late war gunsights saw limited operational use.K-13 Gunsights
Relatively easy to find. And usually in N.O.S. condition. Probably due to the fact that this late war gunsight saw limited operational use.K-14 series Gunsights
A Lucky and rare find exchanged in the US with an aircraft turrets restorer. The back plate and gyro are not original to this sight as the original was missing. So not sure gyro motor is the correct model.
R.A.C. Mk. 18 GunsightN-2A Gunsight N-6 Gunsights N-9 Gunsights and reflectors heads
Lynn (and Na-Mac) Gunsights
Gunsight Heads for the N-3 series
Definitely one of the biggest challenge of any serious collection as, if N-3 are relatively to very easy to find (there is an average of 2 to 3 N-3C for sale just on Ebay every week), the same cannot be said for the sight heads. Heads produced/procured by aircraft manufacturer are the most difficult to find.F-101C Reflector Gunsight