Rifleman Q&A: Mysterious ‘Trapdoor’

by
posted on April 25, 2023
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
1870 Springfield Officer’s Model Carbine

Q: I have what I believe to be an 1870 Springfield Officer’s Model Carbine. What I have researched is that these rifles were converted from caplock to a centerfire mechanism, and vernier sights were added. The rifle I have is converted from flintlock using a similar, if not the same, mechanism for firing centerfire cartridges. The only marking is found at the top, rear of the breech and it reads:
“Model 1870.”

I cannot find a single callout in Flayderman’s reference book or the NRA museum website. Is my conversion authentic?


A: You have an interesting piece. “Trapdoor”-style rifles and carbines have regularly been altered to look like flintlock muskets and rifles, blunderbusses and even pistols by the motion picture industry for use as prop guns. These conversions are generally fairly crude (only good enough to look good on camera) and are normally undertaken using later arms chambered in .45-70 Gov’t. in order to take advantage of readily available blanks. 

Your piece, on the other hand, it being a Model 1870, is most probably chambered in .50-70 Gov’t., unless it has been re-chambered. The work appears to be of excellent quality; I have never seen anything quite like it and can only opine that the work was likely undertaken by some gunsmith or talented hobbyist who wanted to fire a “flintlock” without all the attendant bother. The fact that the piece also has an anachronistic, vernier-style rear tang sight indicates that it was intended for shooting rather than just for show.

—Garry James, Field Editor

Latest

Hillsdale College Shotgun Nsca Championship 1
Hillsdale College Shotgun Nsca Championship 1

Youth Firearm Education, Shooting Leagues On The Rise

Several states have instituted firearm education courses for students in public schools, and several scholastic shooting leagues have posted record attendance numbers in recent years.

Preview: Fix-It Sticks Rifle And Optics Toolkit With All-In-One Torque Driver

An optic coming loose can ruin a hunt or a range session, so having a pocket-size remedy such as the Fix-It Sticks Rifle and Optics Toolkit is a prudent hedge.

Glock Unveils Its GEN6, V-Series Pistols

"Perfection" is now in its sixth generation, as Glock introduces its new GEN6 line of handguns, which incorporates substantial mechanical and ergonomic changes compared to previous factory offerings.

Tisas Introduces PX-9 2.0 Duty Comp, Carry Comp & Tactical Comp Pistols

Many handgunners are seeing the value of muzzle compensators on their handguns, and Turkish gunmaker Tisas is answering the call with three new models: the PX-9 2.0 Duty Comp, Carry Comp and Tactical Comp.

Preview: Federal BYOB .22LR Ammo Bucket

With 1,375 rounds of .22 Long Rifle ammunition, the stackable, reusable Federal BYOB .22 LR Ammo Bucket is sure to keep even the most ardent shooter of rimfire handguns or rifles busy for a while—even if there’s more than one new gun under the tree.

Gun Of The Week: CZ 600+ American

CZ expanded its 600 series of rifles with a particular version tailored to the American market, and this CZ 600+ American model has a few unique features incorporated into the design.

Interests



Get the best of American Rifleman delivered to your inbox.