Description
The Matador Arms MAT9-K Roller Pistol in 9mm Luger with a 5.5-inch barrel, 22-round magazine, and Glock magazine compatibility is a roller-delayed, bufferless pistol built for shooters who want reduced recoil, a compact package, and the ability to run the most common 9mm magazines on the market. This black frame, brace-ready handgun ships with a 22-round magazine and features an ambidextrous upper and lower receiver, a 1913 rail for mounting your favorite brace or stock, and a last-round bolt hold open that keeps you in the fight. At $1,005.35, it delivers a proven roller-delayed system in a ready-to-run pistol that accepts Glock magazines without adapters.
| Manufacturer | Matador Arms (per manufacturer specs) |
|---|---|
| Model | MAT9-K Roller Pistol |
| Material | Black anodized aluminum upper and lower receiver, steel barrel, polymer grip |
| Compatibility | Glock 9mm magazines (G17, G19, G26), 1913 rail accessories, folding stocks/braces |
| Finish | Black anodized |
| Weight | Approximately 4.2 lbs (unloaded, per manufacturer specs) |
| Condition | New |
Key Features
- Roller-Delayed Action – Why it matters: This system, originally designed for our MAT-9K upper, reduces felt recoil by delaying the bolt opening until chamber pressure drops. You get flatter shooting, faster follow-ups, and less muzzle rise than a standard blowback 9mm pistol.
- Glock Magazine Compatibility – Why it matters: No need to hunt for proprietary mags. Use your existing Glock 17, 19, or 26 magazines (22-rounder included) for reliable feeding and easy reloads. This also keeps magazine costs low.
- Bufferless, Folding Stock/ Brace Ready – Why it matters: No buffer tube means the MAT9-K can fold into a compact package for storage or transport. The 1913 rail on the rear accepts any brace or stock you choose, making it adaptable for pistol or SBR configurations.
- Ambi Upper and Lower Receiver – Why it matters: Lefties and righties can both run this gun without swapping parts. The non-reciprocating, reversible charging handle can be moved to either side, and the LRBHO works from both sides.
- Last Round Bolt Hold Open (LRBHO) – Why it matters: You’ll always know when the mag is empty. The bolt locks back on the last round, and the ambidextrous bolt release lets you drop it with either thumb – no fumbling.
Who It’s For
The MAT9-K is for shooters who want roller-delayed performance in a pistol format without the weight or complexity of a full rifle build. It’s ideal for competition shooters who need fast splits, home defenders who want a compact but controllable platform, and enthusiasts who already own Glock magazines and want a compatible host. If you’ve been waiting for a roller-delayed 9mm pistol that doesn’t break the bank or force you into proprietary mags, this is it.
Pros & Cons
- Pros: Low recoil from roller-delayed system; uses cheap, widely available Glock magazines; bufferless design folds compact; ambi controls for all shooters; LRBHO keeps you in the fight.
- Cons: The 5.5-inch barrel limits velocity compared to a full-length carbine, and the roller-delayed action can be more sensitive to limp-wristing than a standard blowback pistol – proper grip technique matters.
Comparison: MAT9-K vs. Zev Technologies OZ9 vs. Lone Wolf Distributors G19
| Feature | Matador Arms MAT9-K | Zev Technologies OZ9 | Lone Wolf Distributors G19 |
|---|---|---|---|
| Action Type | Roller-delayed blowback | Striker-fired, standard blowback | Striker-fired, standard blowback |
| Magazine Compatibility | Glock 9mm mags (G17/19/26) | Proprietary OZ9 mags | Glock 19 mags |
| Barrel Length | 5.5 inches | 4.49 inches | 4.02 inches |
| Recoil Reduction System | Roller-delayed | None (standard recoil spring) | None (standard recoil spring) |
| Weight (unloaded) | ~4.2 lbs | ~1.8 lbs | ~1.6 lbs |
| Price Range | $1,005 | $1,200+ | $500–$600 |
| Brace/Stock Ready | Yes (1913 rail) | No (std pistol grip) | No (std pistol grip) |
Is the MAT9-K compatible with standard Glock 19 magazines?
Yes. The MAT9-K accepts Glock 9mm magazines including G17, G19, and G26. The included 22-round magazine is a standard Glock-pattern mag. No adapters or modifications needed.
Can I mount a folding stock or brace on this pistol?
Yes. The rear of the receiver has a 1913 rail, so you can attach any brace or stock that uses a 1913 interface. The bufferless design allows the brace/stock to fold to the side without interference.
Does the roller-delayed system reduce recoil significantly?
Yes. The roller-delayed action delays the bolt opening until chamber pressure drops, reducing felt recoil by about 30–40% compared to a standard blowback 9mm pistol. Per Matador Arms specs, this also allows a lighter upper and improves reliability with a wider range of ammunition.
What is the barrel twist rate?
The barrel has a 1:10 twist rate, which stabilizes standard 115–147 grain 9mm loads well. This is standard for 9mm barrels and works for both range ammo and defensive hollow points.
Is this pistol legal to own in all states?
It ships as a pistol with a 5.5-inch barrel and no stock, so it is legal in most states where handguns are permitted. Check your local laws regarding brace or stock installation. We ship to all 50 states via FFL transfer.
✓ Nationwide delivery (all 50 states) ✓ Ships 1-2 business days ✓ 30-day returns ✓ Secure checkout
Last updated: April 2026
Browse more: Semi Auto Handguns | 9mm Pistols | Glock Magazine Compatible Firearms




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