"C" marked NM rifles

[chuckindenver]

drawing numbers were used on some replacement parts starting in about 1937. and wernt NM only.
they are uncommon but not rare.
CV marked parts such as sear and cocking rods along with drawing numbers can be NM parts , but have been found on standard service rifles.
sights and sight bases, stocks, handguards, cut offs. trigger, sear, cocking rod, extractors, buttplate, buttplate trapdoor,
floor plate, follower, and front sight are some of what iv seen over the years.

[Johnny P]

Drawing numbers on M2 Bolt assembly.

[Johnny P]

WWII Springfield Armory replacement barrel for 1911/1911A1 with the drawing number.

[Randy A]

Seasons' Greetings!

With no intention of bursting your bubble, star gauge record number prefixes cover many, if not most letters of the alphabet. And the numbers range from single to four digits.

Happy New Year!

J.B.

Yep, just mentioning that this too could be a feature that the gentleman was talking about on NM rifles.