Carry · Competition · Duty
Shield Arms Magwells
Faster Reloads. Zero Compromises.
Carry & Premium Variants 6061-T6 Aluminum Type II Anodized Drop-In Install Lifetime Warranty Made in Bigfork, MT
What's Hot
Right Now at Shield Arms
Best SellerPistol Magazines
S15 Magazine — Glock 43X / 48
15 rounds, steel-bodied magazine that raises capacity in the slimline 9mm frame.
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Best SellerMagazine Extensions
Glock 17 +5 Extension
Serviceable floor plate and a plus-power spring in every box. Drop-in, under five minutes.
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NewMag Extensions
+5 Extension - Glock 43X / 48 OEM 15 Round Mag
5 extra rounds for the new Glock 43X and Glock 48 OEM 15-round magazine.
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Back in StockFirearms
SA-9 FLR 7.5" Folding Pistol
The fold is machined into the receiver, not bolted on with an adapter. Patented, 7075-T6 billet.
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GlockMagazines · Extensions · Magwells
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SIG SauerMagazine Extensions · Barrels · Magwells
AR-15Accessories
Folding Lower Receiver
The Fold Is Built In.
Not Bolted On.
Every adapter-based folding system on the market adds bulk, complexity, and a potential failure point. The Shield Arms FLR integrates the folding mechanism directly into the lower receiver — a patented design that no one else offers.
Patented Design 7075-T6 Billet No Adapter Needed Made in Montana Lifetime Warranty
Lifetime Warranty
Every product we make, for as long as you own it. Defect in materials or workmanship, we replace it.
Made in MontanaDesigned, machined, and assembled in Bigfork. American materials, American labor.
Patented TechnologyThe integrated folding lower receiver is ours alone. No adapter, no bolt-on, no one else.
LE / MIL TrustedDepartmental pricing and direct sales support for law enforcement and military purchasers.
Financing AvailablePay over time at checkout through Credova.
Shipping & ReturnsFree shipping over $100.
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New Drops. Restocks. Deals First.
Product launches, back-in-stock alerts, and subscriber-only pricing — sent from the shop floor in Bigfork, Montana. No filler.
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News
28 May 2026
Lake County Sheriff's Office Selects Shield Arms SA-9 and SA-15 for Special Response Team
Shield Arms announces that the Lake County Sheriff's Office has chosen the SA-9 and SA-15 folding carbines for their Special Response Team following extensive testing.
The Shield Arms Revolver Optic Conversion (ROC) is featured in Concealment Magazine Issue 47 by Recoil. Discover how this revolutionary mounting system brings red dot optics to J-frame revolvers without gunsmithing or permanent modifications.
Shield Arms Announces DS-Series Increased Capacity Magazines for Glock 9mm Pistols: DS-18 and DS-20 mags, increased capacity Glock 19 and Glock 17 magazines with over-insertion stop technology.
Featured Products
S15 Gen 3 - 15-Round Steel Magazine for Glock 43X/48
The patented Shield Arms S15 Gen 3 is a flush-fitting 15-round steel magazine for Glock 43X/48, providing 50% more capacity than OEM 10-round magazines. Made in USA, lifetime warranty.
$39.99
ROC - Revolver Optic Conversion
Revolutionary mounting system installs red dot sights on Smith & Wesson J-frame revolvers without gunsmithing or permanent modifications. Available in RMRcc and RMSc footprints. Made in USA with lifetime warranty.
$149.99
SA Premium Magwell - Glock 17 Gen 6
Professional-grade CNC-machined aluminum magwell engineered for Gen 6 Glock 17 and 45 pistols, featuring an optimized funnel design for championship-level reload speed. Made in USA with a lifetime warranty.
$115.00
SA Carry Magwell - Glock 17 Gen 6
The Shield Arms Carry Magwell for Gen 6 Glock 17 and 45 delivers faster, more reliable reloads without the bulk of a competition magwell. CNC-machined from 6061-T6 aluminum, its low-profile funnel design improves magazine insertion speed while maintaining holster compatibility for everyday carry and duty use. Drop-in installation. Made in USA. Lifetime warranty.
$110.00
SA Carry Magwell - Glock 19 Gen 6
The Shield Arms Carry Magwell for Gen 6 Glock 19 delivers faster, more reliable reloads without the bulk of a competition magwell. CNC-machined from 6061-T6 aluminum, its low-profile funnel design improves magazine insertion speed while maintaining holster compatibility for everyday carry and duty use. Drop-in installation. Made in USA. Lifetime warranty.
$110.00
$88.00
SA Premium Magwell - Glock 19 Gen 6
CNC-machined 6061-T6 aluminum magwell engineered exclusively for the Gen 6 Glock 19. Maximum-opening funnel geometry delivers the fastest, most consistent reloads available for the compact Glock platform—built for USPSA, IPSC, and high-volume tactical training. Drop-in installation. Made in USA. Lifetime warranty.
$115.00
SA-9 FLR 7.5" Folding Pistol - 9mm
Gen 2 SA-9 folding 9mm pistol built on Shield Arms Folding Lower Receiver. Accepts standard Glock double-stack magazines. 7.5" barrel, folds to 13" for compact storage. Last round bolt hold open, premium components. Ships with Mountain Partisan Sling. Made in USA, lifetime warranty.
$1,499.00
SA-15 Stripped Folding Lower Receiver
Patented SA-15 Stripped Folding Lower Receiver. No adapter required - revolutionary folding mechanism built into the receiver. 7075-T6 billet aluminum construction. Build your custom folding AR-15 rifle or pistol. Made in USA with lifetime warranty.
$375.00
Bestsellers
S15 Gen 3 - 15-Round Steel Magazine for Glock 43X/48
The patented Shield Arms S15 Gen 3 is a flush-fitting 15-round steel magazine for Glock 43X/48, providing 50% more capacity than OEM 10-round magazines. Made in USA, lifetime warranty.
$39.99
S15 Combo 1
Shield Arms S15 Combo 1: Complete upgrade kit with 3x S15 Gen 3 15-round magazines and 1x steel mag catch for Glock 43X/48. Everything needed to increase capacity by 50% while maintaining flush-fit concealability. Made in USA, lifetime warranty + Spring for Life guarantee.
$122.00
$87.00
Standard S15 Mag Catch for Glock 43X / 48
Essential steel magazine catch for Shield Arms S15 15-round magazines. Prevents wear when using steel magazines, ensures reliable retention and drop-free operation. Ambidextrous design with lower profile ideal for concealed carry. Black nitride finish, easy installation, lifetime warranty. Made in USA.
$12.00
SA Carry Magwell - Glock 43X/48
Ultra-low profile magwell specifically designed for Glock 43X and 48 everyday carry. Precision CNC-machined aluminum with hard anodized finish. Rounded no-snag edges for comfortable all-day carry, especially AIWB. Improves reload speed and consistency without compromising concealability. Drop-in installation with included hardware. Compatible with Shield Arms S15 magazines, OEM Glock magazines, and Shield Arms extensions. Made in USA, lifetime warranty.
$75.00
S15 Starter Kit
Complete upgrade kit: (1) S15 Gen 3 15-round magazine + (1) Standard steel mag catch. Everything needed to upgrade your Glock 43X/48 from 10 to 15 rounds. Save $10 vs buying separately. Lifetime warranty + Spring for Life guarantee. Made in USA.
$44.99
Premium S15 Steel Mag Catch for Glock 43X/48
Premium hand-specific steel mag catch for Shield Arms S15 magazines. Enhanced ergonomics with extended knurling, beveled edges for smooth reloads, and increased magazine engagement. Not compatible with OEM magazines. Select left or right hand. Made in USA, lifetime warranty.
$36.99
Shield Arms S15 +5 Magazine Extension
The Shield Arms S15 +5 Magazine Extension adds 5 rounds to your S15 magazine for a total of 20 rounds. Maximum capacity for competition, home defense, and range use. Lifetime warranty.
$39.99
Z9 Pistol Magazine for Glock 43
The Z9 is a 9-round steel magazine for Glock 43 that provides 50% more capacity than OEM in the same footprint as a standard magazine with pinky extension. Made in USA with lifetime warranty.
$38.00
