DealsGunsAmmo
Cheaper Than Dirt© Cheaper Than Dirt
80Deal ScoreIn Stock

ProMag SIG21 Standard 10rd 9mm Luger Fits Sig P938 Blued Steel, Magazine

$17.97
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Brand
ProMag
Color
Blued
Caliber
9mm
Capacity
10
Category
Gun Parts
Gun Part Type
Magazine
UPC
708279013324
MPN
SIG21

Overview

The ProMag SIG21 is a 10-round magazine chambered in 9mm Luger and designed specifically for the compact Sig P938 platform. Manufactured in the USA from blued steel, it features precision-wound springs made from heat-treated chrome silicon wire to resist fatigue and maintain consistent feed tension through heavy use. Backed by a lifetime manufacturer's defect warranty, this single-stack magazine serves as a reliable replacement or backup option for training and everyday carry.

Price & Stock History

Price — 90d
Listings In Stock — 30d

Reviews

3.2
15 reviews
Customer Sentiment

Customer experiences are polarized, with some users reporting reliable performance and a good fit, while others report frequent feeding issues, jamming, and difficulty with proper magazine seating.

5 star
7
4 star
1
3 star
1
2 star
0
1 star
6

Listings

Cheaper Than DirtBest Deal
In Stock
$17.97
Brownells
No Stock
$18.39
Brownells
No Stock
$18.39
Vizards Guns and Ammo
In Stock
$20.39
Armed In Michigan
In Stock
$20.62
Tactical Surplus USA
In Stock
$21.48
City Arsenal
In Stock
$22.99
Palmetto State Armory
In Stock
$23.69
Hinterland Outfitters
No Stock
$24.97
MidwayUSA
No Stock
$24.99
WB Armory
In Stock
$25.32
Governors Gun Club
In Stock
$25.39
X-Ring Supply
In Stock
$25.99
Tactical Surplus USA
In Stock
$26.04
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