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Stag Arms Upper Receiver Assembly Kit Up to $2.50 Off — 2 models

Stag Arms Upper Receiver Assembly Kit, Right Hand, STAG300451
Stag Arms Upper Receiver Assembly Kit, Left Hand, STAG310451
Stag Arms Upper Receiver Assembly Kit, Right Hand, STAG300451
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Stag Arms Upper Receiver Assembly Kit, Right Hand, STAG300451
Stag Arms Upper Receiver Assembly Kit, Left Hand, STAG310451
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Stag Arms Upper Receiver Assembly Kit, Left Hand, STAG310451

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Most Recent Reviews
Fits like a glove! by Joe, Verified Owner, March 4, 2026
This upper assembly fits the Stag Arms left handed upper very nicely since it was made for it. Finishes the look just like it was supposed to and installed just like it was supposed too!
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Product Info for Stag Arms Upper Receiver Assembly Kit

The upper parts kit includes everything you need to install the dust cover and forward assist onto a right-handed upper receiver. Specs Parts: C-clip Ejection port cover Ejection port cover roll pin Ejection port cover spring Forward Assist assembly Forward Assist roll pin Forward Assist spring SKU:STAG300451 FAQ Q: Does Stag Arms have instructions or a video on how to install the kit? A: We strongly recommend having a gunsmith install the upper parts kit to prevent damage during installation.image

WARNING: California`s Proposition 65

Specifications for Stag Arms Upper Receiver Assembly Kit:

Manufacturer: Stag Arms
Color: Black
Fabric/Material: Aluminum
Caliber: 5.56x45mm NATO, .223 Remington
Gun Make: AR Platform
Gun Model: AR-15
Weight: 1 lb
Country of Origin: USA

Package Contents:

  • Stag Arms Upper Receiver Assembly Kit
  • Ejection Port Cover
  • Ejection Port Cover Roll Pin
  • Ejection Port Cover Spring
  • Forward Assist Assembly
  • Forward Assist Roll Pin
  • Forward Assist Spring

What firearm models does the manufacturer say Stag Arms Upper Receiver Assembly Kit is compatible with?

The manufacturer says that Stag Arms Upper Receiver Assembly Kit is compatible with AR-15

Stag Arms Upper Receiver Assembly Kit Orderable Models

List of Orderable Models

  • Stag Arms Upper Receiver Assembly Kit, Left Hand, STAG310451 , MPN: STAG310451 , UPC: 840213903497 , Code: 2PS-UPK-URAK-STAG310451
  • Stag Arms Upper Receiver Assembly Kit, Right Hand, STAG300451 , MPN: STAG300451 , UPC: 811546026313 , Code: 2PS-UPK-URAK-STAG300451
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