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Shield Arms AR-15 Parts & Accessories

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.

Shield Arms was established in 2017.

Manufacturing origin: Made in USA.

Market positioning: Competition / Performance.

Shield Arms has 163 products available on GunPartPicker, ranging from $9.00 to $494.99.

Shield Arms Product Categories

  • Glock Magazine: 75 products
  • Optic: 28 products
  • Glock Magazine Release: 21 products
  • Glock Magwell: 14 products
  • Magazine: 11 products
  • Optic Mount: 4 products
  • Lower Receiver: 4 products
  • Gas Block: 3 products
  • Glock Optic Plate: 2 products
  • Sling: 1 product

Stock status: 91 in stock, 72 out of stock.

Shield Arms logo

Shield Arms

Website
163
Products
16
Retailers
Best overall: BattleHawk Armory
$9 – $495
Price Range
Best value: BattleHawk Armory
60%
In Stock
287 of 478 listings

Prices checked · refreshed daily across 37 retailers

Shield Arms products

About Shield Arms

Shield Arms makes Glock carry upgrades in Montana. The S15 magazine takes a Glock 43X or 48 from 10 rounds to 15.

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

Why Shield Arms

Seth Berglee and Brandon Zeider started Shield Arms in a barn in Bigfork, Montana in 2017. It's grown past 40 workers and is adding buildings, including its own machine shop.

The S15 is the product. It's a magazine that takes a Glock 43X or 48 from 10 rounds to 15 in the same footprint. It's meant to run with Shield's steel mag catch, which sells for about $11.

That catch can wear plastic factory mags faster over time, so plan to run S15s in that gun. The lifetime warranty transfers, and Spring for Life replaces worn mag springs for free.

We'd buy S15s if you carry a 43X or 48 and want five more rounds without a bigger gun.

  • The S15 magazine bumps a Glock 43X or 48 from 10 rounds to 15.
  • The steel mag catch is made to run the S15, but it can wear plastic factory mags faster over time.
  • The lifetime warranty transfers, and the Spring for Life deal replaces worn out mag springs free.

Brand Overview

Products163
PositioningCompetition / Performance
ManufacturingMade in USA
WarrantyLifetime Warranty
Established2017
Price Range$9 – $495
In Stock91 of 163 (56%)

Available At

MidwayUSAClassic FirearmsBattleHawk ArmoryBrownellsPalmetto State ArmoryGuns.comKY Gun Company

What Builders Choose

Based on real builds

Top Shield Arms products builders are adding

Shield Sights RMS2 Glass Edition Red-Dot Reflex Sight 4 MOA Dot - Premium - RMS2-4MOA-GLASS
Optic·Added to builds

Shield Sights RMS2 Glass Edition Red-Dot Reflex Sight 4 MOA Dot - Premium - RMS2-4MOA-GLASS

$263.93
AR-15 Easy-Install Adjustable Gas Block
Gas Block·Added to builds

AR-15 Easy-Install Adjustable Gas Block

See price

Customer Ratings & Reviews

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