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There was a time when the 9mm AR meant one thing: the Colt 635, the slick-sided subgun that rode in patrol cars and security details through the 80s and 90s. Harrington & Richardson, now building under the Palmetto State Armory umbrella, took that icon and turned it into a semi-auto carbine anyone can enjoy. The Retro 635 nails the details, from the smooth slickside upper with carry handle sights to the vintage CAR-15 style stock, six hole carbine handguard, and A2 grip, all wrapped in a period-correct black anodized finish.
Under the throwback looks is a straightforward blowback 9mm action, the same simple approach the original used, which means fewer parts to fuss with and reliable cycling with a wide range of ammo. The 16 inch lightweight barrel is 4150 chrome moly vanadium steel with a nitride finish for corrosion resistance and long service life, spun with a 1/10 twist that stabilizes common 9mm bullet weights just fine. The muzzle wears a 9mm A1 birdcage on 1/2×28 threads, so swapping to a different muzzle device or a can is easy. Receivers are forged 7075-T6 aluminum, and H&R added a brass deflector so left-handed folks are not catching cases off the cheek.
This carbine runs on Colt-style 9mm stick magazines and ships with a 32 rounder in the box. H&R recommends ASC and Metalform mags, which are affordable, easy to find, and drop free cleanly. That mag pattern has been around for decades, so building a deep stack for range day will not break the bank.
Beyond the nostalgia, 9mm out of a 16 inch barrel is soft shooting, quiet compared to 5.56, and cheap to feed. That makes the Retro 635 a great trainer, a fun plinker, and an easy gun to hand a newer shooter without overwhelming them. It handles like the AR you already know, it just does it with more style.
It feeds from Colt-style 9mm stick magazines, the same pattern used by the original Colt 9mm SMG and plenty of modern 9mm ARs. H&R specifically recommends ASC and Metalform magazines for the best reliability. One 32-round magazine comes in the box, and spares are inexpensive and widely available.
No, and that is by design. Like the original Colt 635 it copies, this carbine uses a simple direct blowback action with a heavy 9mm bolt carrier, so there is no gas system to tune or clean. It is a proven setup for pistol caliber ARs and keeps maintenance about as easy as it gets.
The upper is a retro slickside design with a fixed carry handle and A1 style iron sights, so there is no flat top rail. You can use a carry handle optic mount if you want a red dot or scope, but most buyers pick this carbine specifically for the classic irons. If a modern optics setup is the priority, a flat top 9mm AR is the better fit.
Yes. The 16 inch nitride barrel is threaded 1/2×28 and ships with a 9mm A1 birdcage flash hider installed. That common thread pitch makes it simple to add a 9mm-rated suppressor or swap in a different muzzle device.
| UPC | 810141222694 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | HR51655152852 |
| Action | |
| Barrel Length | 16" |
| Caliber/Gauge | 9mm |
| Capacity | 32 |
| Color | Black |
| Model | |
| Product Type | AR |
| Shipping Weight | 9.0 |
| Sights | Iron Sights |
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