Shield Arms

Prices checked Oct 4, 2026 · refreshed daily across 37 retailers

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  Shield Sights RMS2 Glass Edition Red-Dot Reflex Sight 4 MOA Dot - Premium - RMS2-4MOA-GLASS
  $263.93
  In stock
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  Shield Sights AMS Red-Dot Sight 8 MOA Dot - Durable for Fast Target Acquisition - AMS-8MOA
  $229.99
  In stock
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  Shield Sights SIS2 Red-Dot Sight 8 MOA Dot - Compact for Quick Target Acquisition - SIS2-CD
  $371.72
  In stock
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  Shield Sights SMS Red-Dot Sight 2 MOA Dot - Compact for Precision Shooting - SMS-65-2MOA-POLY
  $117.99
  In stock
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  Shield Sights SMSc Red-Dot Sight 8 MOA Dot - Reliable for Fast Targeting - SMSC-8MOA-POLY
  $166.64
  In stock
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  Shield Sights SMS Red-Dot Sight 4 MOA Dot - Reliable for Tactical Precision - SMS-4MOA-POLY
  $117.99
  In stock
• 
  Shield Sights RMSc Glass Edition Red-Dot Reflex Sight 8 MOA Dot - High-Visibility - RMSC-8MOA-GLASS-OG
  $229.99
  In stock
• 
  Shield Sights SMS2 Glass Edition Red-Dot Sight - Premium 4 MOA Dot Reflex Sight for Precision Accuracy - SMS2-4MOA-GLASS
  $181.13
  In stock

About Shield Arms

Shield Arms is a small Montana shop that started in a founder's garage and grew into a known name for Glock carry upgrades. Most people know them for the S15 magazine, which takes a Glock 43X or 48 from 10 rounds to 15, plus the steel mag catch built to run it.

Founded 2017, Bigfork, Montana, Made in USA · Lifetime warranty · Glock 43X and 48 specialist

What we know about Shield Arms

• Gear: Shield Arms says its S15 magazine bumps a Glock 43X or 48 from 10 rounds to 15. source
• Gear: Their steel mag catch is built to pair with the S15 mags, and Shield Arms itself warns it can wear plastic factory mags faster over time. source
• Company: Shield Arms says products it makes carry a transferable lifetime warranty, plus a Spring for Life deal where worn out mag springs get replaced free. source