Shield Arms S15 Magazine +5 Base Plate Extension - Matte Black - SA-S15-ME-5-BLK - UPC 853465008193
Product Description
The Shield Arms S15 +5 Base Plate Extension (SA-S15-ME-5-BLK) is a high-capacity performance enhancement engineered specifically for the Shield Arms S15 15-round magazine. Designed to convert your standard S15 magazine into a 20-round high-capacity feeding system for GLOCK 43X and GLOCK 48 Slimline handguns, this extension delivers a 20+1 total capacity in a compact, EDC-friendly profile.
Precision CNC-machined from 6061-T6 aircraft-grade aluminum and finished in a severe-duty type III hardcoat anodized black, the SA-S15-ME-5-BLK is built to withstand extreme drop impacts, tactical reloads, and rigorous hard-use field training. Its index groove geometry aligns flush with the magazine tube body for seamless magwell insertion and rapid tactile retrieval from magazine pouches.
Equipped with an easy-access sliding bottom plate for fast field maintenance, this extension includes a custom 12-coil high-power heat-treated stainless steel spring to guarantee 100% reliable feeding tension from the first round to lockback on empty. Proudly made in the USA, the Shield Arms +5 extension is an essential firepower multiplier for GLOCK 43X and 48 concealed carry and tactical setups.
*Armorer Bench Notes & Real-World Staging Guidance:
Fitment Matrix: Direct fit for Shield Arms S15 Gen 1, Gen 2, and Gen 3 15-round steel magazines. Fits GLOCK 43X and GLOCK 48 frame setups. Note: Fits Shield Arms S15 magazines ONLY. Will NOT fit OEM factory GLOCK 43X/48 10-round polymer magazines or standard double-stack GLOCK magazines. Requires replacing factory S15 spring with the supplied 12-coil high-power spring.
- Depress internal locking insert and slide off factory S15 floorplate, removing original spring and insert.
- Install supplied 12-coil high-power spring into the S15 magazine body, attaching the original follower to top coil.
- Slide SA-S15-ME-5-BLK extension onto base rails until bottom plate locks securely in place; perform full capacity feed and cycle testing.
Key Features
- +5 Round Capacity Expansion: Converts 15-round Shield Arms S15 magazine into a 20-round magazine for GLOCK 43X / 48.
- 6061-T6 Aluminum Construction: Precision CNC-machined aircraft aluminum body for extreme impact durability.
- Type III Hardcoat Anodized Finish: Severe-duty matte black anodizing resists scratches, wear, and corrosion.
- Included 12-Coil High-Power Spring: High-tensile stainless steel spring ensures reliable feeding and slide lockback.
- Easy Access Sliding Floorplate: Fast, tool-less maintenance and spring inspection in the field.
- Proudly Made in the USA: Engineered and manufactured under strict quality standards in the United States.
Product Specifications
- Brand: Shield Arms
- Model: S15 +5 Base Plate Magazine Extension
- MPN / Part Number: SA-S15-ME-5-BLK
- UPC: 853465008193
- Magazine Compatibility: Shield Arms S15 Magazines Only (Gen 1, Gen 2, Gen 3)
- Handgun Compatibility: GLOCK 43X / 43X MOS / 48 / 48 MOS (w/ S15 Mag)
- Added Capacity: +5 Rounds (20 Rounds Total Capacity)
- Material: 6061-T6 Aircraft-Grade Aluminum
- Finish / Color: Matte Black Type III Hardcoat Anodized
- Mass: ~1.6 oz (45.3 g)
