First Impressions
Best known for its affordably priced youth-sized Crickett and Chipmunk bolt-action rifles and pistols, Keystone also dabbles in youth precision shooting with its Model 6061 and 722 rifles. But it’s the company’s “mil-surp” line of mini replica battle rifles that had me doing a double take the first time I saw them in person.
The build quality feels solid on this Mini 1903-A3, with nicely finished wood and easily adjusted peep sights. There’s also some great attention to detail. The sling swivels are properly placed and functional, and there’s even a working stacking swivel complete with a bayonet lug at the front end.
While the action isn’t technically an M1903 design, it is well tailored for small-frame shooters. Essentially, Keystone plugged its proven Crickett rimfire action into a 1903-A3ish mini stock. There’s no traditional manual safety lever or internal magazine. Simply chamber a round, manually cock the bolt to the rear, and fire. It’s safe, easy, and effective for even the most novice shooter. It’s like the first gun I dreamed about while growing up.
Related: Guns From My Dad – Father’s Day Firearms
It’s tiny – very tiny. That also makes it very fun, and the fact that it makes me feel like a giant is icing on the cake. Nothing quite prepares you for the adorable size of this firearm when you see it in person. Picking it up is even better, and I couldn’t help but chuckle when I hefted the measly 3.375-pound rifle to my shoulder.
Along with this Mini 1903-A3 dressed in a beautiful wooden stock, Keystone also manufactures a popular Mini Mosin Nagant 91/30 replica rifle chambered for the enjoyable .22 LR. Both seem to be hot items because I’ve seen them fly in and out of stock several times over the last few years.
Specs & Function
At its core, the Mini 1903-A3 is essentially a Keystone Crickett action inside a mini-1903ish stock. It’s a very basic single-shot, bolt-action .22 LR rimfire rifle. The bent bolt cycles easily for loading and unloading.
However, cycling the bolt will not cock the gun’s striker. That is done manually by pulling back on the round cocking piece at the rear of the bolt after loading a single round into the chamber. Cocking the striker also locks the bolt.
Related: Keystone Arms Promises Youth-Sized Mini Mosin .22 Rifle
Here’s a quick breakdown of the basic specs for the Keystone Mini 1903-A3:
Weight: 3.375 pounds
Length: 30.38 inches
Barrel Length: 16.5 inches
Sight Radius: 18 inches
Length of Pull: 11.63 inches
Width: 2.23 inches (1.32 inches without bolt hand)
Trigger Pull: 4.22 pounds
Barrel Threading: 3/8x24 TPI
The trigger is a bit springy, but there’s enough take-up to make the relatively light 4.22-pound trigger pull predictable for accurate plinking-distance shooting. However, the short 11.63-inch LOP only allows for a minimal amount of working space for an adult-sized shooter.
Here's a closer look at just how that trigger performs:
While it's hardly a precision trigger, the gun can still pull off great accuracy for an entry-level youth rifle. More on that in the shooting section below. Here are some of the other upgraded parts that help set this model apart from the rest of the Keystone Cricket line.
It’s cramped but perfectly functional, as you’ll see in the shooting section below. Other noteworthy features include a knurled cap at the end of the barrel that covers 3/8x24 TPI threading for suppressors and other muzzle devices. More on that in the shooting suppressed section below.
The rear sight is made of polymer and allows for easy adjustments, though there aren’t the tactile click adjustments you’ll get with more precise adjustable peep sights. There’s also a generous use of metal parts, including the trigger guard, bolt handle, trigger, butt plate, and sling swivels.
Range Testing
I was entirely too excited to get this gun on the range, especially given that it’s technically just a single-shot, youth-sized rimfire rifle. Miniature guns like Keystone’s 1903-A3 replica are just undeniably fun. In fact, this thing got more looks on the range than a host of other tactical and newly released guns I’ve taken over the last year.
Recoil is almost non-existent. While the sight radius is only 18 inches, the peep sights proved to be sufficient for the kind of close and mid-range shooting that suits a miniature gun. Surprisingly, it can also reach out to 100 yards with startling results.
Related: Gun Review – Keystone Arms 722 Rifle
My arms are longer than average, so I can’t say the gun shoulders naturally for me. Still, it’s a better fit for a youth shooter than any of my full-size battle rifles. Plus, despite its small size, I found it uniquely enjoyable to shoot.
Here’s how I fared at 25 yards on my first range visit.
Judging the accuracy potential of a mini gun like this is a bit tricky for a broad-shouldered adult. To give myself a better chance, I flipped the target around and blacked out the rear for my last few targets. That helped bring my shots closer to center.
Reliability is solid. That might sound like a silly thing to say for a single-shot bolt-action rimfire, but I’ve struggled to load and unload similar guns in the past. The small .22 LR cartridges and often finicky actions can be troublesome on small rifles.
The Mini 1903-A3 offered easy loading with the aid of a spring-loaded ramp and an effective extractor. Pulling the bolt back to the rear with just a little pizzazz is enough to fling spent casings clear of the action and the shooter. The ejection pattern is also forward, which is a nice touch that keeps the hot brass off the hands and arms of new shooters.
At 300 rounds, have yet to find any ammo the Mini 1903-A3 doesn't like. So far, I’ve been extremely pleased with the accuracy I’m seeing.
Shooting Suppressed: Banish 22
I happened to have an adapter for the 3/8x24 TPI threads at the end of the Keystone Mini 1903-A3, which I used to attach my Banish 22 sporting 1/2x28 TPI threads. Using subsonic CCI Clean-22, I found this little bolt-action rifle becomes nearly whisper quiet.
That’s not terribly surprising, given that there are no extra moving parts beyond the firing pin during the shooting process. Here’s a peek at what it sounded like firsthand.
Related: The Banish .22 Suppressor: Your Multi-Caliber Noise Solution
I love having this little Banish suppressor on hand for shooting. It’s incredibly light at just 4.1 ounces, and the 5.4 inches of length are barely noticeable on a gun that’s still not as long as your standard Ruger 10/22, even when it’s sporting a quiet can.
All in all, just the fact that you can run an affordable can on this youth-sized gun is a big win in my book. It just makes it that much better as a first firearm for young new shooters. Better yet, it makes it even more fun for the adults shooting with them while simultaneously protecting hearing and respecting other shooters and hunters out in the field.
Pros & Cons
Here are my top pros and cons for the little Keystone Mini 1903-A3. Keep in mind that most of the cons below are a bit nitpicky for a gun that’s really meant for small-profile youth shooters:
Pros:
- Classy and fun Mini 1903-A3 design
- Very easy and safe for new shooters
- Incredibly fun, even for adults
- Reliable and accurate
- Nice adjustable peep sights
- Very quiet when suppressed
Cons:
- Mil-surp replicas come at a higher price
- Single-shot design
- Short length of pull for adults
- No internal magazine
-
Somewhat uncommon 3/8x24 TPI threads
Final Thoughts
I consider myself fortunate to have experienced youth shooting as a Boy Scout growing up. Hunting and shooting, in general, were not activities my family took part in at all when I was a kid, but at least I had the Scouts back then.
When I finally turned 18 years old, my father gifted me one of my first guns as a Christmas present. It was like a scene straight out of “A Christmas Story,” with an old Enfield No. 4 Mk 1 suddenly appearing from behind some curtains.
I dream of one day surprising my own kiddo the same way. Teaching them to shoot with a gun just like Keystone’s Mini 1903-A3 would be a joy.
