Description
The ATI T3 GEN2 is Advanced Technology's second-generation collapsible stock built for 12 gauge pump guns, and the Urban Combat gray/green finish gives your setup a distinct look that isn't just black on black. It replaces your factory buttstock with a six-position adjustable design, letting you set length of pull anywhere from 13-1/8 inches out to 16-5/8 inches. That range covers just about anyone, whether you're bundled up in a hunting coat or running a chest rig, and the adjustable cheek rest adds another half inch of vertical play to help you line up behind irons or an optic.
What Sets the T3 GEN2 Apart
The heart of this stock is the TracLOCK GEN2 system. It gives you smooth, secure adjustments and clamps the stock down on the buffer tube with no horizontal or vertical wobble, so once you set a position it stays put without needing any secondary locking hardware. Folks who've run the older ATI stocks will notice the lockup feels tighter. The whole thing is molded from DuPont glass-reinforced polymer, so it shrugs off chemicals, moisture, and temperature swings that would chew up lesser materials.
Taming 12 Gauge Recoil
ATI built recoil management into this stock from two directions. The X Series pistol grip has a built-in recoil-absorbing backstrap and sure-grip texturing that keeps your hand planted through a long range session, while the upgraded 1-1/4 inch X2 buttpad soaks up the shove at your shoulder. Shooters running heavy loads and home-defense buckshot consistently mention how much softer their gun feels afterward, some describing the difference as night and day compared to a factory stock.
Fit and Setup on the T3 GEN2
The universal mount system ships with the adapters and hardware for all supported models in one box, and it installs with common tools in most cases. It covers the Mossberg 500/535/590/835, Maverick 88, Remington 870/887, Winchester SXP, TriStar Raptor, and older Stevens 320 12 gauge guns. It also carries dual-sided QD sling attachment points and slots for a tactical sling, so you can rig it up however you carry.
Key Specifications
- Manufacturer: ATI Outdoors
- Model: T3 GEN2 Shotgun Stock
- Manufacturer Part Number: C.1.50.2007
- UPC: 758152273529
- Color: Urban Combat Gray/Green
- Gauge: 12 GA
- Length of Pull: 13-1/8 in. to 16-5/8 in. (6-position adjustable)
- Buttpad: 1-1/4 in. X2 recoil reducing pad
- Cheek Rest: Adjustable/removable, 1/2 in. vertical adjustment
- Material: DuPont glass-reinforced polymer
- Adjustment System: TracLOCK GEN2
- Grip: X Series recoil-reducing pistol grip
- Sling Attachment: Dual-sided QD points plus tactical sling slots
- Product Type: Shotgun Stock
What’s Included
- T3 GEN2 adjustable stock sub-assembly
- X Series pistol grip
- X2 recoil reducing buttpad
- Adjustable/removable cheek rest sub-assembly
- Left and right mounts for all supported models
- Mounting hardware
- Installation instructions
Frequently Asked Questions
What shotguns does the ATI T3 GEN2 stock fit?
It covers a wide range of popular 12 gauge pump guns, including the Mossberg 500/535/590/835, Maverick 88, Remington 870 and 887, Winchester SXP, TriStar Raptor, and most Stevens 320 models made before 2016. The universal mount kit ships with adapters for all supported models in one box. A handful of guns like the CZ 712 or newer SXP years may need a specific adapter or minor fitting.
Is the T3 GEN2 stock hard to install?
Most people knock it out in about 15 to 20 minutes using common hand tools, no gunsmith required. You'll remove your factory buttstock, mount the correct adapter for your model, and thread on the new stock. A few owners note the printed instructions could be clearer, so pulling up ATI's install video can save you some head-scratching.
How much does the X2 pad actually cut recoil?
The 1-1/4 inch X2 buttpad paired with the recoil-absorbing grip backstrap makes a real difference, especially with heavier buckshot and slugs. It won't turn a 12 gauge into a rimfire, but plenty of owners say their gun feels noticeably softer on the shoulder and stays flatter for quicker follow-up shots.
How short does the stock get when fully collapsed?
The six positions run from a 13-1/8 inch length of pull out to 16-5/8 inches. If you're hoping for something extremely compact, note that fully collapsed on a Mossberg 500 the length still lands close to a normal stock, so it's more about dialing in fit than shrinking the gun down.







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