Overall length 13.25"; barrel length 8.5"; caliber .54. Markings: same as U.S. M1836 contact pistols, i.e. the locks marked with eagle head over "A. WATERS/MILBURY MS./(date)" or "US/R. JOHNSON/MIDDN CONN./(date)" and various barrel proofmarks; also occasionally marked "N. CAROLINA".

Fayetteville Armory altered approximately 900 U.S. M1836 pistols from flintlock to percussion. These arms were altered by enlarging the flint touchhole and screwing in a cylindrical drum in place of the pan and frizzen. Distinguishing feature of Fayetteville alteration is the clean-out screw at face of cylinder and "S" shaped hammer, not unlike that used on post-1862 dated rifles. No recent sales observed. Values are very speculative.