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

 Secure Online Payments


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

Customers Also Bought

Glock 20 15-Round Magazine
5 (1)
Glock 19 15-Round Magazine
4 (1)
Glock 19 10-Round Magazine
4.55 (116)
Glock 21 13-Round Magazine
4.85 (778)
M14 Magazine
4.5 (5736)

Customer Reviews

Review by Murvin O.
Verified Buyer
Cost is excellent and shipping was fast.
Outstanding Magazine
Review by Cyril S.
Verified Buyer
Happy with this transaction.
Review by Carmon Y.
Verified Buyer
These clips are excellent. Would absolutely buy again.
Great Website
Review by Rahn B.
Verified Buyer
Functions in my Glock using FMJ ammo.
Quick Delivery
Review by Salim Z.
Verified Buyer
Received in two days after buying. Will be back to buy at Keepshooting.
Perfect for me
Review by Harlan N.
Verified Buyer
Cheapest price I could find that was online. Shipping was quick from UPS.
Supreme Magazine 5*
Review by Rasheed P.
Verified Buyer
Received in three days after buying. Will be back to buy at KS again!
Good Order
Review by Yonas R.
Verified Buyer
Clips look wonderful. Exactly what I wanted.
Rapid Processing
Review by Altariq H.
Verified Buyer
I ordered two clips and they all function.
Review by Channing T.
Verified Buyer
I purchased two mags and they all work perfect.
Write Your Own Review
You're reviewing: Glock 21 10-Round Magazine
Your Rating:

You submitted your review for moderation.