In StockSave 35%
Type
parts
Last Seen
May 19, 2026
PROMAG STANDARD
Sold byGuns.com•Posted Apr 27, 2026
Compare prices for ProMag Magazine for Sig P320 9mm 21-Round Steel Blue$20.69
$31.99
You save $11.30 (35% off)
Price and stock data refresh continuously from Guns.com.
Deal Summary
- Currently in stock.
- Category: parts
- UPC: 708279015038
- SKU: 289238
- Brand: Promag
Price History
Deal Details
This 21 round replacement or spare magazine is compatible with your Sig Sauer P320. It is constructed of heat treated steel with injection molded mag follower and mag spring formed from chrome silicone wire. Made in the USA.
Other Offers for This Product
Active offers from your catalog for ProMag Magazine for Sig P320 9mm 21-Round Steel Blue.
Comparing 10 retailers carrying this product
Lowest Price: $18.67
Highest Price: $212.99
You Save: $194.32
Avg Discount: 13% off
PRO MAG SIG P320 9MM 21RD
PromagBattleHawk ArmorySKU/UPC: 708279015038
$18.67$31.99Save 42%
View at BattleHawk Armory
Pro Mag Industries Replacement Magazine 9mm 21-Rounds for Sig P320
Pro Mag IndustriesGrabAGunSKU/UPC: GAG_SIGA20
$19.99$31.99Save 38%
View at GrabAGun
ProMag SIGA20 Standard 21rd 9mm Luger Fits Sig P320 Blued Steel, Magazine
PromagHinterland OutfittersSKU/UPC: 159242
$20.50
View at Hinterland Outfitters
ProMag Magazine, 9mm, 21 Rounds, Fits Sig Sauer P320, Steel, Blued Finish
PromagPalmetto State ArmorySKU/UPC: 516551633023
$23.49$26.99Save 13%
View at Palmetto State Armory
ProMag Magazine for Sig P320 9mm 21-Round Steel Blue
PromagMidwayUSASKU/UPC: 774305
$23.99
View at MidwayUSA
Promag Sig P320 9mm Magazine 21Rds (Steel)
PromagAmmunition DepotSKU/UPC: SIG-A20
$23.99
View at Ammunition Depot
