Inertia Plus System

Retay Arms, of Konya, Turkey, recently announced the company would debut the Masai Mara SP 3.5 at the upcoming SHOT Show in Las Vegas. Moreover, the shotgun, previously manufactured in 2 3/4 and 3-inch models, utilizes the company’s Inertia Plus rotating bolt system.

Retay bills the Inertia Plus as an upgrade to the original Bruno Civolani design, which Benelli purchased and built its successful shotgun lines upon. Moreover, Retay received a U.S. patent for its rotating bolt head system this past June. Also, the patent recognizes Retay’s “innovation of a rotating bolt head system that prevents the unintended unlocking of the bolt head from the breach of a firearm,” according to Retay.

Retay Arms Inertia Plus System

According to a company press release, the Inertia Plus System offers several advantages:

“The Retay Inertia Plus System is capable of effectively cycling lightweight and low recoil shotgun shells as well as heavy hunting loads and eliminates misfires by ensuring the system’s rotating bolt locks into the battery with the chamber under all conditions, while at the same time preventing unintended disengagement.”

Aside from the Inertia System, Marsai Mara shotguns also feature the company’s proprietary Removable Trigger System (RTS). Built from milled aluminum, the system is also designed for quick, easy assembly and disassembly, according to Retay.

Barrel lengths include 24, 26, 28 and 30 inches. An MM Extra Black SP model, with black synthetic stock, retails for $1,200. Meanwhile, five camouflage patterns are available, each retailing for $1,399.

While the Marsai Mara upgrades to the bigger 3.5-inch model this year, the company also lists other models in the works. According to the Retay website, a Turkey XT, Warden and Warden 3G version are coming soon. The Warden is billed as a defensive model, while the 3G model is designed for 3-Gun competition.

For more information, visit

Retay Marsai Mara SP Specifications

  • Gauge: 12
  • Chamber: 2 3/4, 3 and 3 1/2 inches
  • Action: Retay Inertia System with Inertia Plus Locking System
  • Overall Barrel Lengths: 24, 26, 28 and 30 inches
  • Rib: 8mm
  • Recoil Pad: Sculpted, ergonomic Microcell Polyurethane
  • Length of Pull: 14.37 inches
  • Overall Weight: 7.1 pounds
  • Frame: Aluminum, anodized or Cerakote finish
  • Stock: Synthetic
  • Sight: TruGlo Fiber Optic

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