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MasterPiece Arms MPA5700SST Carbine Centerfire Rifle

Item # 780448
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Additional Information:

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  • To buy online and deliver to a Gander Mountain store or an Independent Firearms Dealer, simply add this item to your cart. Click here for additional details.
  • Firearms shipping charge of $25.00 per item.
  • You must be at least 18 years old to purchase this item. State and local laws may vary.


  • Side-Cocking Design

  • Aluminum Quad-Rail

  • Low-Profile Buttstock

  • Muzzle Brake

  • Adjustable Front Sight

Product Summary

The MPA5700SST Carbine is part of MasterPiece Arms' Defender Series, a selection of semi-automatic pistols and rifles modeled after the famous Mac-10. The MPA5700SST fires FN Herstal's 5.7x28mm, a small-caliber, high-velocity cartridge known for its superior performance in NATO testing. The Defender series side-cocking design makes these guns easy to operate while providing a unique military feel. Every American-made MPA5700SST comes standard with: a picatinny top-rail and aluminum quad-rail forend, an MPA low-profile buttstock, a 16" threaded barrel with a muzzle brake, and an adjustable front sight. The rifle ships in a gun case with a 20-round polymer magazine.

Model MPA5700SST Carbine
Type Centerfire Rifle
Action Semi-Auto
Caliber 5.7x28MM
Barrel Length 16"
Sights Adjustable Front/Rear Notch
Finish: Stock Matte Black Synthetic
Finish : Barrel & Receiver Matte Blued
Capacity 20 + 1