Glock 21 10-Round Magazine

The Glock 21 10-Round Magazine is a GLOCK factory magazine for the Glock 21 pistol. This magazine is designed to only hold 10 rounds to ensure universal compliance with magazine capacity restrictions. Legal in all 50 states, this magazine is ideal for those who are lucky enough to own a Glock 21 but unfortunately live in a state where magazine capacity is restricted.

In stock

SKU MF10021

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American Owned and Operated


20+ Years In Business

Returns Accepted

Ships from Pennsylvania




  1. Authentic GLOCK Factory Magazine
  2. Designed for the Glock 21
  3. 10-Round Capacity
  4. .45ACP Caliber

More Information

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Customer Reviews

Fast Shipping
Review by Sherry I.
Verified Buyer
Cost is excellent and shipping was speedy.
Fast Delivery
Review by Laval X.
Verified Buyer
Received in three days after placing my order. Will be back to shop at KS again!
Awesome Clip
Review by Gregorio J.
Verified Buyer
These mags are awesome. Would definitely recommend.
Very Happy
Review by Arion M.
Verified Buyer
Clips look wonderful. Exactly what I needed.
Just as pictured.
Review by Wilberto Q.
Verified Buyer
5 Star
Terrific Deal
Review by Laroy N.
Verified Buyer
Cost is perfect and shipping was quick.
Great for me
Review by Calixtro J.
Verified Buyer
Finest clips for the price sold by a terrific company. Thank you keepshooting!
Top-Notch Mags
Review by Cirilo W.
Verified Buyer
Clips look great. Exactly what I wanted.
Great Mag 5*
Review by Vasilios K.
Verified Buyer
I bought two mags and they all function great.
Supreme Clip 5*
Review by Johnn Q.
Verified Buyer
Fits in my Glock using all ammo.
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