Reviewing Brophy's "The Krag Rifle", it was his belief that the Benicia made "DCM Carbines" were only equipped with actual carbine stocks and 1901 sights.

He regretted the lack of any special marking on the DCM/NRA arms.

IIRC - I have read from some reliable source, (that I cannot find now), that Benicia ran out of carbine stocks and made use of shortened & 'plugged' rifle stocks.

It would be nice to see some documented "DCM/NRA carbines" to better illuminate this Krag Rifle niche.

---