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...

Top locations in Texas

4 Grand Prairie

3 Corpus Christi

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 San Juan, TX

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

$

—

$

$53$613

New or Used

Owner

6 listings found

SortShow

6 listings found

Receivers & Upper Parts in San Juan, TX - GunList

.223 Rem/.204 Ruger~ 5 Rd SA Floor Plate & Magazine Kit

.223 Rem/.204 Ruger~ 5 Rd SA Floor Plate & Magazine Kit

Receivers & Upper Parts

$76

Mcallen, TX

6.5 Creedmoor 5 Rd SA Floor Plate & Magazine Kit

6.5 Creedmoor 5 Rd SA Floor Plate & Magazine Kit

Receivers & Upper Parts

$76

Mcallen, TX

Hunter 700 Mag Well Bottom Metal for Remington 700 SA Black

Hunter 700 Mag Well Bottom Metal for Remington 700 SA Black

Receivers & Upper Parts

$77

Mcallen, TX

East India 5.56x45 Assembled Upper Medium 16" BBL w/Rail

East India 5.56x45 Assembled Upper Medium 16" BBL w/Rail

Receivers & Upper Parts

$550

Brownsville, TX

AR-15 LSFA Low Snag Forward Assist Serrated Black

AR-15 LSFA Low Snag Forward Assist Serrated Black

Receivers & Upper Parts

$53

Brownsville, TX

AR-15 WORKHORSE 16 Upper M-LOK 1-7 Twist 5.56 NATO

AR-15 WORKHORSE 16 Upper M-LOK 1-7 Twist 5.56 NATO

Receivers & Upper Parts

$613

Brownsville, TX

Outside Your Search Radius

Ambidextrous Bolt Release

Ambidextrous Bolt Release

Receivers & Upper Parts

$49

Corpus Christi, TX

Workhorse Blem Stripped Upper Receiver for AR-15 FDE

Workhorse Blem Stripped Upper Receiver for AR-15 FDE

Receivers & Upper Parts

$132

Corpus Christi, TX

Hunter M5 Detachable Box Mag Well for Rem 700 SA Black

Hunter M5 Detachable Box Mag Well for Rem 700 SA Black

Receivers & Upper Parts

$230

Laredo, TX

Hunter M5 Detachable Box Mag Well for Rem 700 LA CIP Black

Hunter M5 Detachable Box Mag Well for Rem 700 LA CIP Black

Receivers & Upper Parts

$230

Laredo, TX

Type-3 Detachable Box Mag Well for Rem 700 SA Black

Type-3 Detachable Box Mag Well for Rem 700 SA Black

Receivers & Upper Parts

$230

Laredo, TX

Type-3 Detachable Box Mag Well for Rem 700 LA CIP Black

Type-3 Detachable Box Mag Well for Rem 700 LA CIP Black

Receivers & Upper Parts

$230

Laredo, TX

Howa 1500 SA Trigger Guard Detachable Magazine Floorplate

Howa 1500 SA Trigger Guard Detachable Magazine Floorplate

Receivers & Upper Parts

$43

San Antonio, TX

AR-15 Enhanced Bolt Stop, Black

AR-15 Enhanced Bolt Stop, Black

Receivers & Upper Parts

$50

San Antonio, TX

TDP Spec Ejection Port Cover, Single Dimple, Black

TDP Spec Ejection Port Cover, Single Dimple, Black

Receivers & Upper Parts

$56

San Antonio, TX

AR15 Premium MILSPEC Buffer Tube Assembly W/Super 42, H2 BLK

AR15 Premium MILSPEC Buffer Tube Assembly W/Super 42, H2 BLK

Receivers & Upper Parts

$178

Austin, TX

BRN-15 5.56mm 11.5" BBL .750" Gas Block Upper Receiver

BRN-15 5.56mm 11.5" BBL .750" Gas Block Upper Receiver

Receivers & Upper Parts

$385

Austin, TX

BRN-15 5.56mm 13.7" BBL .750" Gas Block Upper Receiver

BRN-15 5.56mm 13.7" BBL .750" Gas Block Upper Receiver

Receivers & Upper Parts

$385

Austin, TX

Other Rifle Parts You May Consider

T-Bone Charging Handle For 223/5.56 Black

T-Bone Charging Handle For 223/5.56 Black

Charging Handles

$42

Mcallen, TX

Black Bolt Knob

Black Bolt Knob

Charging Handles

$41

Mcallen, TX

PKMR Handguard Keymod Midlength FDE

PKMR Handguard Keymod Midlength FDE

Handguards & Forends

$44

Mcallen, TX

PKMR Handguard Keymod Midlength Black

PKMR Handguard Keymod Midlength Black

Handguards & Forends

$44

Mcallen, TX

ARCALOCK Arca Swiss Fixed Barricade Stop

ARCALOCK Arca Swiss Fixed Barricade Stop

Handguards & Forends

$50

Mcallen, TX

1895 Marlin Top Rail Black Picatinny

1895 Marlin Top Rail Black Picatinny

Handguards & Forends

$53

Mcallen, TX

AR-15 Receiver Small Parts Kit

AR-15 Receiver Small Parts Kit

Parts Kits

$58

Mcallen, TX

Rear Trunnion Folding Stock Adapter for AK-47 Picatinny Blk

Rear Trunnion Folding Stock Adapter for AK-47 Picatinny Blk

Stocks

$88

Mcallen, TX

Railed Stock AdapterSF 1913 Adpater

Railed Stock AdapterSF 1913 Adpater

Stocks

$88

Mcallen, TX

Rear Bag Rider M-Lok Steel Black

Rear Bag Rider M-Lok Steel Black

Stocks

$88

Mcallen, TX

Bravo Chassis Tool-less Buttpad Height Kit

Bravo Chassis Tool-less Buttpad Height Kit

Stocks

$92

Mcallen, TX

ACS-L Collapsible Mil-Spec Carbine Stock for AR-15 Gray

ACS-L Collapsible Mil-Spec Carbine Stock for AR-15 Gray

Stocks

$94

Mcallen, TX