Across all USA

Firearms Local Marketplace

Find Listings Near You:

Across all USA

FFL Transfer Shop By Brand Bill of Sale About Us Contacts

Post Your ListingFast, free, and no registration required

All Guns for Sale Handguns Rifles Shotguns Parts & Accessories Gear More...

Sell Your GunFree

Reach thousands of buyers in your area and across the country. Fast, secure, and 100% free to list.

Create Listing Now

Market
Parts & Accessories
Gun Parts
Rifle Parts
Receivers & Upper Parts

Receivers & Upper Parts in Barrington, IL

Find complete uppers and non-serialized receiver components for sale from trusted sellers, ideal for rifle builds and upgrades.

All Guns for Sale Handguns Rifles Shotguns Parts & Accessories Gear More...

© 2026 GunList - Buy & Sell Guns

© 2026 GunList — Buy & Sell Firearms, Parts, Optics & Tactical Gear.

FFLs Safe Trading Terms & Rules Contact Us Privacy

A+ Rated by BBB

GunList is a classifieds platform only — we do not sell, ship, or transfer firearms, and we are not a party to any transaction between users. GunList is designed to support compliance with applicable federal, state, and local firearm laws. All users are responsible for following the laws that apply to their location and transaction.

Report illegal firearms activity: 1-800-ATF-GUNS

Howdy, stranger|Sign InorCreate an Account

Filters

Keyword or Listing ID

Category

Brand

Price

$

—

$

$0$5k+

New or Used

Owner

0 listings found

SortShow

0 listings found

No listings found matching your search.

Outside Your Search Radius

AR-15 Magazine Quick Change Adapter Block 9mm

AR-15 Magazine Quick Change Adapter Block 9mm

Receivers & Upper Parts

$81

Mc Kinney, TX

Bolt Action Magazine Well Standard for Hunter 700L Black

Bolt Action Magazine Well Standard for Hunter 700L Black

Receivers & Upper Parts

$88

Mc Kinney, TX

.300 WM 5 Rd LA Floor Plate & Magazine Kit

.300 WM 5 Rd LA Floor Plate & Magazine Kit

Receivers & Upper Parts

$87

Mc Kinney, TX

MK12 SPR 18" 5.56mm NATO 1-7 12" DDM4 Rail Upper

MK12 SPR 18" 5.56mm NATO 1-7 12" DDM4 Rail Upper

Receivers & Upper Parts

$1,989

Frisco, TX

MCR DUAL-FEED UPPER MLOK

MCR DUAL-FEED UPPER MLOK

Receivers & Upper Parts

$7,040

Frisco, TX

EBRv2/308 Extended Bolt Release

EBRv2/308 Extended Bolt Release

Receivers & Upper Parts

$66

Plano, TX

.22-250 Rem 5 Rd SA Floor Plate & Magazine Kit

.22-250 Rem 5 Rd SA Floor Plate & Magazine Kit

Receivers & Upper Parts

$76

Plano, TX

.338/7mm 5 Rd LA Floor Plate & Magazine Kit

.338/7mm 5 Rd LA Floor Plate & Magazine Kit

Receivers & Upper Parts

$76

Plano, TX

.243 Win/7mm-08/308 Win 5 Rd SA Floor Plate & Magazine Kit

.243 Win/7mm-08/308 Win 5 Rd SA Floor Plate & Magazine Kit

Receivers & Upper Parts

$76

Plano, TX

MK12 MOD 0 SPR Gen III 5.56mm 18" BBL 1-8 Twist Upper Black

MK12 MOD 0 SPR Gen III 5.56mm 18" BBL 1-8 Twist Upper Black

Receivers & Upper Parts

$1,880

Garland, TX

MCR Dual-Feed Upper Picatinny 12.5in Dry Film

MCR Dual-Feed Upper Picatinny 12.5in Dry Film

Receivers & Upper Parts

$7,700

Garland, TX

MK12 MOD 0 SPR Gen III 5.56mm 18" BBL 1-8 Twist Upper FDE

MK12 MOD 0 SPR Gen III 5.56mm 18" BBL 1-8 Twist Upper FDE

Receivers & Upper Parts

$1,902

Garland, TX