The F-1 Firearms UDR-15 Universal Upper Receiver is the best of both worlds. The upper receiver is made with 7075-T6 aircraft quality domestic Aluminum ensuring quality and offers the signature F-1 Firearms 3G skeletonizing for reduced weight and aesthetics. This upper receiver is also universal which makes it compatible with any MILSPEC lower out there.
UDR-15-3G universal upper receiver
Manufactured from high grade 7075-T6 billet aluminum
Unnecessary surfaces milled out for lightest reliable configuration
Black – Type III Class 2 hard anodizing
Colors – Type II hard anodizing
F-1 Firearms 100% Product Guarantee
Rules and Restrictions
The purchasing some of the items in our store are regulated by Federal laws and local restrictions.
- All FFL rules apply. Please check your local State and Federal law before purchase.
- All firearms purchases will be shipped to FFL dealers only, copy of valid ID need to be send to us via email to email@example.com
- Shipping will be Provided By registered shippers only (FedEx, UPS, USPS) with tracking and insurance.
- Alaska: No Ammo.
- California: No Handguns. No Hi-Cap Mags without a Hi-Cap Mag Permit. No Defense/Clip Fed Shotguns. No Semi-Auto rifles. No M-16 Bolts. No Ammo without a FFL.
- Connecticut: No Semi-Auto rifles. As of September 1st we will be re-evaluating the status of the October 1st laws.
- Delaware: BFSIII™ triggers are sold for use in pistols and non-rifle firearms only. Buffer springs and ajustable gass blocks are sold for use in pistols and non-rifle firearms only.
- Florida: As of September 1st we will be re-evaluating the status of the October 1st laws.
- Hawaii: No Pistol Mags over 10rds. No Ammo. No BFSIII™ products.
- Illinois: No Ammo without a FFL.
- Maryland: No Handguns. No Hi-Cap Mags over 20rds. As of September 1st we will be re-evaluating the status of the October 1st laws.
- Massachusetts: No Handguns. No Hi-Cap Mags without an FFL. No Defense/Clip Fed Shotguns. No Semi-Auto rifles. No Ammo.
- New Jersey: No Hi-Cap Mags over 10rds.
- New York State: No Handguns. No Mags over 10rds.
- New York City, Bronx, Brooklyn, Manhattan, Staten Island, & Queens: No Handguns. No Mags over 10rds. No Ammo. No NFA Restricted Items.
- Vermont: No rifle mags over 10rds. No pistol mags over 15rds.
- Washington DC: No Firearms. No Hi-Cap Mags. No Ammo.
- APO & FPO Addresses: No Ammo.