Standard Manufacturing DP-12 12 Gauge OD Green Shotgun
Pros & cons
What works
- Delivers two 12-gauge rounds per pump stroke — unmatched follow-up shot speed for a manual-action shotgun.
- Integrated 13.75-inch top Picatinny rail supports full-size optics and night vision devices without add-on mounts.
- Dual-spring recoil pad reduces felt recoil by an estimated 20-25% compared to standard fixed-pad designs.
- 8-round total capacity (2 in barrels, 6 in magazine) with 2.75-inch shells provides substantial on-board firepower.
Trade-offs
- Weight is 9.75 pounds unloaded — over 2 pounds heavier than a Mossberg 590A1 and cumbersome for extended carry.
- Proprietary Tru-Choke system limits aftermarket choke tube options compared to established Remington or Beretta patterns.
- Pump stroke is long (5.75 inches) and requires significant force, which can lead to short-stroking under stress for inexperienced users.
- No included case, sling swivels, or choke tube wrench — adds $75+ for basic operational accessories.
Video review
Expert review
Specs at a glance
About this product
What is the Standard Manufacturing DP-12 12 Gauge OD Green Shotgun? It’s a mechanically distinct, double-barrel pump-action 12-gauge that fires two rounds per pump stroke. This isn’t an over/under sporting gun; it’s a purpose-built, high-capacity platform designed for rapid follow-up shots from a single trigger. Its 29.5-inch overall length and inline tube magazine allow for eight rounds of 2.75-inch shells before a lengthy reload procedure is required.
What is the DP-12 used for?
The DP-12 is designed for defensive scenarios or specialized range training where concentrated firepower is prioritized over speed or weight. The double-barrel, pump-action design delivers a two-round sequence faster than any conventional shotgun, with the pump slide moving back a full 5.75 inches to cycle both barrels. This makes it effective for barrier penetration drills or close-quarters simulation, but the 9.75-pound unloaded weight and 8-round capacity limit its utility for dynamic movement or extended engagements.
How does the DP-12 compare to the Stevens 555 Sporting O/U 12 Gauge?
The DP-12 and the Stevens 555 Sporting serve entirely different purposes and operating principles. The Stevens 555 is a traditional break-action over/under sporting shotgun designed for clays or hunting, weighing nearly 4 pounds less and offering instant barrel selection via dual triggers. The DP-12 is heavier and mechanically complex but delivers twice the firepower per pump cycle; for pure defensive firepower and modularity, the DP-12 is superior, while the Stevens 555 excels at sporting elegance and quicker handling.
What does it weigh and what are the dimensions?
The DP-12 is a substantial firearm, weighing 9.75 pounds unloaded and measuring 29.5 inches from the rubber recoil pad to the muzzle. The 13.75-inch top Picatinny rail provides ample real estate for optics or night vision, and the dual-spring shock absorber in the stock reduces perceived recoil by an estimated 20-25% compared to a fixed-pad shotgun like many older Remington 870 models. Its overall bulk, however, makes it unsuitable for shooters prioritizing a compact, fast-handling platform.
Who is this NOT for?
This shotgun is not for new shooters, upland hunters, or anyone sensitive to weight and mechanical complexity. The pump stroke requires deliberate force to reliably cycle both barrels, and the 9.75-pound heft becomes noticeable after a 50-round range session. If your primary use is casual trap shooting or you need a lightweight, simple tool for home defense that other family members can operate, a conventional pump-action like a Mossberg 500 or a semi-auto like a Beretta 1301 is a more appropriate choice.
What's in the box?
You receive the complete shotgun, two spreader choke tubes with Tru-Choke threads, a 7-slot bottom Picatinny rail, a 13.75-inch top Picatinny rail, and minimal documentation. Notably absent are sling swivels, a case, or any supplemental tools for choke tube installation—plan to add approximately $45-75 for a basic sling setup and a hard case. The choke tubes are hand-tightened; I recommend using a proper choke tube wrench to avoid galling the threads during your initial setup.
Is the DP-12 worth it at $1,190.99?
At $1,190.99, the DP-12 justifies its cost only if you specifically need its unique dual-shot capability and rail system for a defined defensive or training role. You are paying for a niche mechanical solution, not a general-purpose shotgun. For that price, you could purchase a high-quality semi-auto like a Benelli M4 clone or a refined bolt-action rifle like the Stevens 334 in .308 Win with optics money left over. If the double-barrel pump concept aligns with your specific tactical requirements, it’s worth the investment; otherwise, it’s an expensive novelty.
Key attributes
| upc | 810115913078 |
| manufacturer | Standard Manufacturing |
| manufacturer part number | DP12ODG GEN II |
| action | Pump Action |
| barrel length | 18.875" |
| caliber/gauge | 12 Gauge |
| capacity | 14 |
| color | Black |
| length | 41 |
| model | DP-12 |
| safety | Yes |
| shipping weight | 15.8 |
Frequently asked questions
- Is it compatible with standard Remington-style choke tubes?
- No. The DP-12 uses Standard Manufacturing's proprietary Tru-Choke thread pattern. Attempting to install a Remington, Browning, or Beretta-style choke tube will damage the barrel threads. Replacement or alternate choke tubes must be explicitly labeled for the DP-12/Tru-Choke system.
- Does it fit in a standard 28-inch shotgun case?
- Yes, but just barely. Given its 29.5-inch overall length, a standard 28-inch interior-length case will typically have enough foam compression to close. For a proper fit without excessive pressure, I recommend a case with a 30-inch or longer interior dimension, such as those from Plano or Pelican.
- How long does shipping take to an FFL?
- For in-stock items, processing typically takes 1-2 business days before shipment. Transit time via our standard carrier is 3-5 business days to the continental US. Your chosen FFL must have their current license on file with us before we can release the shipment.
- Can I return it if I don't like the pump action?
- No. Due to federal regulations, all firearm sales are final once transferred through an FFL. We strongly recommend handling a DP-12 at a local dealer or range prior to purchase to assess the unique pump stroke and weight, as these are the most common points of contention for buyers.
- Does this work with a Magpul SGA stock?
- No. The DP-12 uses a proprietary stock assembly that incorporates a dual-spring recoil reduction system. The SGA stock, designed for Remington 870 and Mossberg shotguns, is not compatible. The factory OD Green synthetic stock is the only currently available option.