Due to ATF final rule 2021R-08F, all Quarter Circle 10 Full Pistol Builds will no longer come with pistol braces installed or included.
Please contact us if you have any questions before ordering.

MP5 Magazine 9mm 30 Rounds Special Buy 4 Get 1 Free!

Availability: Out of stock
Only 0 left
Special Price $159.80 was $199.75

Shipping & Returns

Shipping: All orders are shipped within 72 hours Monday -Thursday 6am - 4pm Arizona Time.

Any order containing a lower receiver will not be shipped until we receive a copy of your FFL. Once received regular shipping policies apply. Submit your FFL Here.

Holiday Shipping: The QC10 Shop is closed from December 223rd-January 2nd. During this time, shipping will also be closed. You order will be processed on Jauary 2nd and will ship out the same or next week. Please double check your shipping information as well as get your FFL info in so that your order will not be delayed. 

Returns: Quarter Circle 10 offers a 30 day return, refund and exchange policy. See Details.

  • Buy 4 Get 1 FREE!
  •  30 Round capacity
  • Cold Rolled Steel
  • Removable Baseplate
  • Metal Follower
  • Flat Feed Lips
  •  Official 2nd Generation design by KCI USA 


Magazines cannot be shipped to CA, CO, CT, HI, MA, MD, NY, NJ, WA or District of Columbia. Other restrictions may apply. Check your local laws and regulations before ordering.