The Remington 870 SPS Super Magnum is a pump-action shotgun in 12 GA with a 3.5-inch chamber and a 20-inch barrel. It wears a Patriot Brown Cerakote receiver finish and a Kryptek Obskura Transitional thumbhole stock. At 7.25 lbs. and 42.5 inches overall, it's a compact configuration of the 870 platform capable of running the full range of 12 GA loads including 3.5-inch magnum shells. 
 

Key Specifications 

• Brand: Remington Firearms 
• Model Name: 870 SPS Super Magnum 
• Action: Pump Action 
• Gauge: 12 GA 
• Barrel Length: 20 inches 
• Capacity: 4+1 rounds 
• Chamber Size: 3.5 inches  
• Receiver Finish: Patriot Brown Cerakote  
• Weight: 7.25 lbs. 
• Stock Description: Fixed ShurShot Thumbhole  
• Overall Length (OAL): 42.5 inches 
   

Detailed Features 

• Pump Action: The 870's pump mechanism has a well-documented track record for reliability across load types and conditions. 
   
• 3.5-Inch Chamber: Accepts 2-3/4", 3", and 3.5" shells. The 3.5-inch capability is the primary draw for waterfowl hunters running heavy steel loads. 
   
• Patriot Brown Cerakote Receiver: Corrosion-resistant finish, holds up to field and weather exposure. 
   
• Kryptek Obskura Transitional Stock (ShurShot Thumbhole): The thumbhole grip geometry positions the shooting hand more directly behind the bore than a traditional pistol grip, which some shooters find improves control with magnum loads. 
   
• TruGlo Optic Compatibility: Integrated mounting for red dots or similar optics without requiring additional drilling. 
   

Target Audience 

This configuration targets turkey and waterfowl hunters who need the 3.5-inch chamber for heavy loads, along with a compact 20-inch barrel for maneuvering in blinds and dense cover. The 870 platform also suits home defense users who prefer a proven pump gun. 
 

Usage Scenarios 

1. Turkey Hunting: The 20-inch barrel and 3.5-inch chamber are a practical combination for tight, heavy turkey loads at close to medium range. 
2. Waterfowl: The Super Magnum chamber handles 3.5-inch steel loads for geese and larger ducks. 

The 870 SPS Super Magnum in Kryptek Obskura draws on the broader reputation of the 870 platform, which is generally trusted for reliability in demanding conditions. Most owners run it for waterfowl or turkey hunting where the 3.5-inch chamber matters, and feedback from that use case is largely positive. The gun cycles reliably with heavy loads and holds up to wet field conditions.

The Kryptek camo pattern gets favorable comments from hunters who prioritize concealment, particularly in the mixed terrain environments the pattern was designed for. The thumbhole stock is a polarizing feature; some shooters find the grip geometry comfortable and conducive to recoil control with magnum loads, while others prefer a traditional stock configuration.

Weight is brought up as a consideration. At 7.25 lbs. unloaded, adding shells and a sling puts it in the range where extended carry becomes noticeable. The factory trigger is a recurring topic; it functions reliably but isn't as crisp as aftermarket options, and some dedicated competition shooters replace it.

Availability of Remington products has been a periodic friction point given the company's ownership changes, though the product line has largely stabilized. Pricing occasionally draws comparison to competitors, though the 870 platform's accessory ecosystem and parts availability generally factor into buyers' assessments. Overall sentiment is positive among hunters who bought it specifically for the 3.5-inch chamber and compact configuration.