S&T ST870 Marine Magnum Spring Pump Action Shotgun

Perfect for those with high standards of realism and those who like a challenge, the ST870 Spring Pump Action Shotgun replicas the real steel "Marine Magnum" variant of the M870, finished in silver across the metal parts simulating the anti-corrosion electroless nickel plating of the real thing. If you run a USMC loadout, this is the perfect shotgun, but it doesn't come without its quirks!

Based on the Maruzen Type 870 internal design, the ST870 is a single-shot spring action shotgun with an average FPS of around 400 on a 0.2g BB. This means the ST870 falls into the same class as bolt action sniper rifles when it comes to skirmishing but with the faster pump-action loading mechanism and the added challenge of no sights, and no way to mount any! While you won't be taking this beast into CQB, this is the perfect platform for a long-range skirmisher who seeks a challenge to match their skillset.

Starting at the front we can see the lengthy 20-inch outer barrel and extended mock magazine tube, giving the ST870 its military-style looks. The inner barrel inside is 500mm in overall length and is a 6.03mm tightbore, promising superb and not very shotgun-like accuracy and consistency rivalling sniper rifles. The outer barrel is devoid of iron sights or any other details, providing a smooth profile which flares out slightly near the receiver/chamber, just like the real M870.

On the left side of the barrel, we are treated to realistic trademarks in the form of "12GA. FOR 2 3/4 IN. SHELLS" in finely engraved text. This marking is in the same location as the real deal, positioned as such to permit barrel swaps, as is common with M870 shotguns. The TDC HOP-up adjuster is located on the top of the outer barrel, close to the receiver. This takes the form of a grub key adjuster which requires a small Allen key to adjust. The TDC HOP-up unit style is known for its effectiveness with heavy-weight BBs, providing direct pressure to the top of the HOP-up rubber for a stronger HOP-up effect and less side-to-side shot deviation.

Running on alloy cocking arms just below the outer barrel we have the pump grip which is constructed from high-density polymer. The grip is textured to provide ample traction in any weather conditions and is surprisingly easy to rack for such a high FPS platform. While the ST870 may lack iron sights, it can still duke it out in the woods thanks to its high FPS and the fast pump action which can easily put more rounds down in a shorter timeframe than the traditional sniper rifle's bolt action mech.

Moving rearwards, we come to the receiver which is constructed from alloy and finished in silver, matching the real anti-corrosion finish present on the real "Marine" variant of the M870. The finish looks fantastic, as it does across the shotgun's other metal parts, making it stand out in game while maintaining a realistic look ideal for a USMC loadout. On the left side of the receiver, we are treated to more realistic trademarks, reading "Model 870 SUPER MAGNUM" in bold, stylised text matching that of the real manufacturer.

On the right side of the receiver, we can find the detailed mock bolt carrier which is correctly shaped and includes a mock extractor, giving this single-shot M870 a far more realistic look than the tri-shot models. When it comes to sizing, the ST870 is almost bang on 1:1 dimensions, giving it a much slimmer and more realistic feel than the bulkier tri-shot models which make realism compromises to fit the larger tri-shot mech inside. The magazine well is located on the bottom and accepts S&T 22rnd low-cap magazines, though being based on the Maruzen, it should also accept Maruzen and G&P Type 870 magazines.

The trigger and trigger guard assembly is positioned just to the rear of the magazine well and includes a cross bolt safety just behind the trigger. When engaged, the cross bolt safety will lock the trigger and protrude on the right side, putting it easily within reach of the trigger finger for quick actuation and intuitive handling. When the safety is off, the cross bolt button will protrude on the left side with a red ring surrounding it to indicate that the shotgun is hot.

On the left side of the trigger guard, we can find the dummy bolt release which usually functions as the shell door latch on tri-shot shotguns. On the real M870, this control allows you to unlock the bolt and eject a loaded cartridge should you need to switch ammo types or unload without firing. On the ST870, this control is a dummy but is nonetheless a separate part to avoid the telltale signs of this shotgun being a replica.

At the rear, we have a fixed stock with a semi-pistol grip configuration, giving this M870 the classic full-sized shotgun look. The semi-pistol grip features diamond checkering to provide optimal grip and the stock setup itself is constructed from high-density polymer with a textured surface and no rattle or flex to be found. The butt plate is made from rubber, patterned after real steel recoil pads, providing superb wet-weather traction with an S&T logo recessed into the design.

The ST870 is based on the Maruzen Type 870 internal design but is fitted with a 6.03mm tightbore inner barrel to provide the accuracy and range a slug shotgun simulator needs. The TDC HOP-up design is also a nice improvement over the G&P and Maruzen variants and has the potential to make this shotty a real tack driver down range. The lack of sights or the ability to mount them will hold back all but the most skilful skirmishers but those who do rise to the challenge will appreciate the ST870 for its realism, fast pump action mechanism and sniper rifle like range.

If your CQB primary is a tri-shot and you want to keep living that pump action life, the ST870 is the ideal outdoors primary for you. The perfect companion to an authentic US Marine Corps loadout or the experienced skirmisher who wants to test their skills, the ST870 is a stunner with its flawless finish, perfect 1:1 dimensions and the high FPS to do real steel slug shotguns the justice they deserve in Airsoft!

Features

• Full metal construction
• 6.03mm Tightbore inner barrel - Great accuracy potential
• Single shot shotgun - High FPS, TDC HOP-up, simulates a real shotgun using slugs
• Authentic "Marine Magnum" silver finish - Replicates the anti-corrosion finish applied to USMC M870s
• 20" Barrel & extended mock magazine tube - A full size, no messing around shotgun!
• High-density polymer pump handle - Ribbed for extra grip, very high-quality polymer
• "Model 870 SUPER MAGNUM" Trademarks on the receiver - Looks great, just like the real 870
• "12GA. FOR 2 3/4 IN. SHELLS" Marked on the outer barrel - Very realistic
• TDC Adjustable HOP-up unit - Grub key adjuster, on the top of the outer barrel
• Fixed stock with semi-pistol grip - Textured grip, rubber butt plate for wet weather use
• Feeds from Maruzen/S&T/G&P style single shot shotgun magazines - Includes 1x 22rnd mag
• Cannot be "Slam fired" - Don't try it!

Package Includes

• S&T ST870 Marine Magnum Spring Pump Action Shotgun
• 22rnd Low-cap magazine
• User manual