ATI Alpha Maxx HGA Pistol — 5.56 NATO, 7.5″ Barrel, 60+1
Specs at a glance
About this product
The ATI Alpha Maxx HGA Pistol — 5.56 NATO, 7.5″ Barrel, 60+1 is a lightweight polymer AR-style pistol with a 60-round magazine, flip-up sights, and a blade brace for compact high-capacity defense.
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The ATI Alpha Maxx HGA Pistol — 5.56 NATO, 7.5″ Barrel, 60+1 is a compact AR-style pistol built with a polymer upper and lower receiver, chambered for .223 REM / 5.56 NATO. It features a 7.50″ threaded steel barrel, a 7.00″ M-LOK handguard, flip-up sights, and ships with a 60-round window magazine and a rear blade brace. Overall length is 22″, making it a tight package for high-capacity carry.
Specifications
| Manufacturer | American Tactical Imports (ATI) |
|---|---|
| Model | Alpha Maxx HGA |
| Material | Polymer upper and lower receivers, steel barrel |
| Compatibility | .223 REM / 5.56 NATO ammunition |
| Finish | Black anodized barrel, black polymer furniture |
| Weight | 4.9 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- 7.5″ Threaded Steel Barrel — The 1:7 twist rate stabilizes both .223 and 5.56 loads, and the threaded muzzle accepts standard flash hiders or suppressors for reduced recoil and noise.
- 60-Round Window Magazine — Clear window lets you see remaining rounds at a glance, and the high capacity means fewer reloads during range sessions or defensive drills.
- M-LOK Handguard — The 7.00″ free-float handguard allows you to mount lights, grips, or lasers directly, keeping the platform slim and customizable.
- Flip-Up Front and Rear Sights — Low-profile sights deploy instantly for iron-sight shooting and fold flat when not in use, preserving your optic mount space.
- Rear Blade Brace — Provides a stable cheek weld and shoulder contact point for better control during rapid fire, without adding the bulk of a full stock.
Who It’s For
This pistol suits the shooter who wants a compact, high-capacity platform for truck, backpack, or home defense. It’s also a solid choice for plinkers who appreciate the convenience of 60+1 rounds without swapping mags.
Pros & Cons
- Pro: Lightweight polymer build keeps the overall weight under 5 lbs for easy one-handed carry.
- Pro: High-capacity magazine included — saves you $40–60 over buying separately.
- Con: The polymer upper receiver may not accept all aftermarket handguards or rails without modification, so check compatibility before upgrading.
Comparison
| Feature | ATI Alpha Maxx HGA | Zev Technologies OZ9 | Agency Arms AAR-15 |
|---|---|---|---|
| Caliber | .223 REM / 5.56 NATO | 9mm | .223 REM / 5.56 NATO |
| Barrel Length | 7.5″ | 4.5″ | 7.5″ |
| Capacity | 60+1 | 15+1 | 30+1 |
| Frame Material | Polymer | Aluminum | Aluminum |
| Price | $362.17 | $1,200+ | $1,800+ |
| Included Brace | Rear blade brace | None | None |
The ATI Alpha Maxx HGA offers a lower price point and higher capacity than the Zev and Agency options, though those competitors use aluminum frames for greater rigidity. For a budget-friendly defensive pistol, the ATI delivers more rounds per dollar.
FAQ
What is the overall length of the ATI Alpha Maxx HGA Pistol?
The overall length is 22 inches with the brace collapsed. This makes it compact enough for vehicle storage or a backpack.
Does the pistol come with a warranty?
Yes, ATI provides a limited lifetime warranty on the polymer receiver and a 1-year warranty on the barrel and internal components. Check the manufacturer’s website for full terms.
Can I use standard AR-15 magazines with this pistol?
Yes, the magazine well accepts standard AR-15/M16-pattern magazines. The included 60-round mag is a proprietary design, but any mil-spec 5.56 magazine will work.
Is the barrel compatible with a suppressor?
Yes, the barrel is threaded 1/2×28 TPI, which is the standard for 5.56 suppressors. You’ll need a muzzle device that matches the thread pitch.
Trust & Shipping
- ✅ Nationwide delivery (all 50 states)
- ✅ Ships 1-2 business days
- ✅ 30-day returns
- ✅ Secure checkout
Browse more AR Pistols or check our Firearms section for similar builds. You can also explore AR Parts & Accessories to customize your platform.
Last updated: April 2026