AR-15 & AR10 PARTS & ACCESSORIES
BARREL THREADING, PINNING AND CROWNING SERVICES
CLEANING KITS AND EAR PROTECTION
CLEARANCE AND GENTLY USED PARTS
FAKE SUPPRESSORS/FAKE SILENCERS
GUN CASES, RANGE BAGS, SLINGS, SLING SWIVELS, & RAILS
M-12, M-11A1 SMG & SA .380 PARTS
MAGAZINE SPRINGS AND REBUILD KITS
MAGAZINES FOR ALL M-11 9MM, MAC-10 9MM, SMG & SEMI AUTO
MAGAZINES FOR ALL MASTERPIECE ARMS .45 ACP, MAC-10 .45 ACP SMG & SA
MAGAZINES FOR ALL MASTERPIECE ARMS 9MM PISTOLS & RIFLES
MAGAZINES FOR AR-15, AR-10, GLOCK, AND WALTHER
MAGAZINES FOR M11A1 .380 ACP & M12 .380 ACP
MAGAZINES FOR STEN, UZI, & H & K
MASTER PIECE ARMS 22T-A PARTS & UPGRADES
MASTER PIECE ARMS Replacement Parts for 9mm-30, 35, 930, S, SST, & T Series
MASTERPIECE ARMS .45 ACP & MAC-10 SEMI AUTO PARTS and UPGRADES
MASTERPIECE ARMS 9mm-30, 35, 930 MINI Series - UPGRADES
REAR BUTTSTOCKS & BUFFER TUBES
We ship through the United States Postal Service, using their Priority mail system. We CAN ship to Post Offices Boxes and commercial addresses.
We cannot ship to APO (Army Post Office) addresses as it is a customs violation.
Certain states have restrictions as to the capacity of gun magazines.
California, Hawaii, OH, MA, IL - Restrictions on High Capacity Magazines.
New York City - Restrictions on High Cap mags of any type to NYC.
New York State - No "Formerly Restricted" mags. We cannot guarantee Glock mags are "pre-ban" unless we have them listed as "pre-ban".
Washington D.C. - No sales of any high capacity magazines
Massachusetts - Restrictions on High Capacity Magazines
Please call for any questions and specifics on the magazine capacity restrictions in your state.
Returns must be shipped to the following address:
US Machinegun LLC
P.O. Box 757
Gilbert, AZ 85299-0757
Buyer is responsible for return shipping. Items not in their original packaging will not be refunded. If items show signs of use or mounting, they will not be refunded.
All returns will require a copy of the invoice and the original packaging within 30 days or they will incur a restocking fee. We do not allow returns on modified/notched magazines. Please call 602-448-6266, Monday through Friday from 9am to 2pm Arizona standard time with any questions. There are no returns allowed for Special Order items or custom made components.