Patented Folding Lower Receiver
The Fold Is Built In. Not Bolted On.
SA-15 and SA-9 folding rifles, pistols and stripped lowers. No adapter, 7075-T6 billet.
Shop the FLR
S10 Grip Chop System
10 Flush. Runs to 20.
New
DS-Series · Glock 19 / 17
More Rounds for the Double Stack
Shop DS-18 & DS-20 →SHOP ACCESSORIES BY MODEL:
Most Popular
Best Sellers
Best Seller
S-Series · Glock 43X / 48
S15 Gen 3 Magazine15 rounds, flush at OEM length. Requires a steel mag catch.
Add to Cart
Kit
S-Series · Glock 43X / 48
S15 Starter KitOne S15 plus the steel mag catch it needs. 10 to 15 rounds, done.
Add to Cart
S-Series · Glock 43X / 48
S20 Magazine20 rounds in one steel body. Extends below the grip; requires a steel mag catch.
Add to Cart
Magwells · Glock 43X / 48
SA Carry MagwellLow-profile funnel for carry. Drop-in, hardware included.
Add to CartGlock 43X / 48 Upgrade
Go From 10 to 15. One Box.
S-Series mags lock up on a steel mag catch, not the factory polymer one. Every kit ships with the catch, so there's nothing else to figure out.
S10 Grip Chop System
One Pistol. Five Capacities.
Carry the chopped 43X or 48 at 10 rounds flush. Reload from an S15, an extended mag or an S20 when you want more. Every S-Series mag and extension still fits.
10
12
15
17
20
Dashed line = bottom of the chopped grip. Red = magazine below the grip.
SA-15 · SA-9 · Stripped Lowers
Fold It Without an Adapter.
The folding mechanism lives in the lower receiver itself. Every adapter-based system adds bulk and a failure point; the patented Shield Arms FLR doesn't. Complete SA-15 and SA-9 builds ship to your FFL.
Patented Design 7075-T6 Billet No Adapter Needed Lifetime Warranty
Faster Reloads
Magwells
More Rounds
Mag Extensions
S · Z · DS-Series
Pistol Magazines
Build Your Own
Lower Receivers
Proven on Duty
Chosen by People Who Test for a Living.
Lake County Sheriff's Office selects the SA-9 and SA-15 for its Special Response Team.
Read the story →
The Revolver Optic Conversion puts a red dot on a J-frame with no gunsmithing.
Read the feature →
Newsletter
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.
Unsubscribe any time. We don't sell or share your address.
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
S20 - 20 Round Glock 43X/48 Magazine
The Shield Arms S20 is a patented 20-round steel magazine for Glock 43X/48 — the highest-capacity backup mag available for the platform. Built on the S15's staggered feed geometry in a single steel body. QPQ finish, Made in USA, lifetime warranty.
$44.99
$39.99
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 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
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
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
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
$99.99
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.
$74.99
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
$39.99
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
Glock 17/22/34/35/19X/45 +5/4 Mag Extension
Shield Arms +5/4 magazine extension for Glock 17/22/34/35/19X/45. Precision-machined aluminum construction adds 5 rounds (9mm) or 4 rounds (.40/.357) without compromising reliability. Easy installation, lifetime warranty. Made in USA.
$39.99
