FAXON 338 ARC ENHANCED FORGED AR15 UPPER RECEIVER - STRIPPED W/COMPLETION KIT

Faxon
SKU:
UR-FAX-F-A-C-338
|
UPC:
816341029316
Availability:
Usually ships within 2 business days when available.
$125.00
(3 reviews)
Current Stock:
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Description

AR15 Upper Receivers › Stripped Upper Receivers › 338 ARC Enhanced Forged AR-15 Upper Receiver with Completion Kit

 

AR-15 Upper Receiver • 7075-T6 Forged • With Completion Kit

Faxon 338 ARC Enhanced Forged AR-15 Upper Receiver with Completion Kit

SKU: UR-FAX-F-A-C-338

Faxon’s 338 ARC upper starts as the Enhanced Forged receiver, then gets feed ramps modified for the 338 ARC case and Faxon’s extended-ramp 338 ARC barrel extension, the part most 338 ARC feeding problems come down to. It keeps every Enhanced feature: trued, honed bore, tighter lug tolerance, engraved T-marks, and the skeletonized shell deflector. This version includes the completion kit: forward assist and ejection port cover assemblies, shipped unassembled.

7075-T6 FORGED

Forged aluminum, Type III hard coat anodized, flat-top Picatinny rail.

THREADS GAUGED

Barrel threads (1.250-18 UNEF) checked on every receiver; CMM-checked every shift.

338 ARC FEED RAMPS

Ramps cut for the 338 ARC case and Faxon’s extended-ramp extension.

COMPLETION KIT

Forward assist and ejection port cover included, unassembled.

MSRP $125  •  Made by Faxon in Greater Cincinnati, Ohio  •  Faxon Lifetime Guarantee  •  No FFL required

What Makes It Different

  • Feed ramps modified for 338 ARC: Cut to match Faxon’s extended-ramp 338 ARC barrel extension
  • Trued by Faxon at the factory
  • Inside bore honed to smooth the bolt carrier’s travel
  • Tighter tolerance on the barrel-extension lugs for a better fit
  • Manually engraved T-marks that stay visible after any coating
  • Skeletonized (hollowed) shell deflector: lighter, and the Faxon look
  • Faxon logo engraving

Which Faxon Upper Receiver Do You Need?

ReceiverWhat it isMSRP
Forged, strippedPlain-sided forging; no engraving, T-marks, or skeletonized deflector$89
Forged, with completion kitSame, plus forward assist and port cover$115
Enhanced Forged, strippedTrued, honed bore, tighter lugs, engraved T-marks, skeletonized deflector$99.99
Enhanced Forged, with completion kitSame, plus forward assist and port cover$125
338 ARC Enhanced, with completion kit (this receiver)Feed ramps cut for 338 ARC; recommended for Faxon 338 ARC barrels$125
Big Bore Enhanced, with completion kitBig-bore ramps and port; required for .450 BM and .458 SOCOM, recommended for 350/400 Legend$125

Don’t want to build it? Faxon sells this receiver already built into complete uppers and barreled uppers, with Faxon barrels, gas systems, and handguards installed.

Specifications

Material7075-T6 forged aluminum
FinishType III hard coat anodizing
Barrel thread1.250-18 UNEF, gauged on every receiver
Top railFlat-top Picatinny
Weight.53 lb (8.48 oz)
Caliber compatibility338 ARC
IncludedForward assist and ejection port cover assemblies (unassembled)
Made inGreater Cincinnati, Ohio, USA
WarrantyFaxon Lifetime Guarantee

Fitment

Lower receiverAny mil-spec AR-15 lower; Faxon lowers include a tensioning screw
BarrelsMil-spec AR-15 barrels and barrel nuts
HandguardsFree-float handguards with a mil-spec upper interface
FFLNot required; the upper isn’t the serialized part

What Reviewers and Owners Say

OPTICSPLANET

Faxon Forged Upper Receiver Reviews ›

Verified buyer on Faxon’s forged 7075-T6 upper.

“The quality and craftsmanship is exceptional.”

RECOIL

Hog Hunting With 338 ARC ›

A 338 ARC hunting build on a Faxon upper, barrel, and gas block.

“their uppers and barrels are cut with very generous feed ramps to aid in reliability.”

OPTICSPLANET

Faxon 338 ARC Upper Receiver Reviews ›

Verified buyer on the 338 ARC Enhanced Forged upper.

“The larger feed ramps are excellent, and fit closer to the ramps on the barrel extension.”

“this receiver with the enlarged feed ramps solved the problem.”

John Rankin, 338 ARC upper, FaxonFirearms.com

“Fit and finish was great and all the parts fit well.”

Randy Selman, 338 ARC upper, FaxonFirearms.com

Average rating on FaxonFirearms.com: 5.0 out of 5 stars (338 ARC upper).

338 ARC Enhanced Forged AR-15 Upper Receiver with Completion Kit FAQs

What’s a stripped upper receiver?

The upper receiver alone, with no barrel, bolt carrier group, charging handle, or handguard. This version adds the completion kit: forward assist and ejection port cover assemblies, shipped unassembled.

Forged or billet: does it matter?

For a mil-spec AR-15 upper, a 7075-T6 forging is the proven standard: strong, consistent, and compatible. Billet receivers can offer unique shapes, but no functional advantage on their own. Faxon’s uppers start as 7075-T6 forgings and are machined and inspected in Greater Cincinnati.

Will it fit my lower?

Yes, any mil-spec AR-15 lower. Faxon lowers include an upper-to-lower tensioning screw to take out play.

Does it need an FFL?

No. On an AR-15, the lower receiver is the serialized part; the upper ships directly to you. State and local laws still apply.

Do I need this upper for a 338 ARC build?

Faxon recommends it with Faxon 338 ARC barrels. Their extensions are custom milled with extended feed ramps for heavy subsonics, and this upper’s ramps are cut to match, which is what keeps heavy bullets feeding.

What are T-marks for?

They’re reference marks on the top rail that make it easy to put an optic back in the same spot. Faxon engraves them, so they stay visible after any coating.

Where is it made, and what is the warranty?

Faxon machines and inspects its upper receivers in Greater Cincinnati, Ohio, and backs them with the Faxon Lifetime Guarantee.

Warranty

Faxon Lifetime Guarantee. Covers manufacturing and material defects to the original purchaser. Excludes damage from misuse, neglect, non-standard ammunition, or modifications. Register your product at faxonfirearms.com/product-registration to expedite service. For purchases through dealers or distributors, warranty repairs are handled directly by Faxon Firearms; refunds must be processed through the selling entity. Full policy: faxonfirearms.com/warranty-privacy-terms/

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Reviews

  • 5
    Upper Receiver

    Posted by Randy Selman on Feb 10th 2026

    Fit and finish was great and all the parts fit well. No issues putting it together.

  • 5
    FAXON 338 ARC AR-15 UPPER RECEIVER - FORGED 7075-T6 - COMPLETE - ANODIZED

    Posted by John Rankin on Jul 7th 2025

    Great upper receiver! I was having problems with feeding issues on my AR .338 arc rifle and this receiver with the enlarged feed ramps solved the problem.

  • 5
    Faxon 338 arc upper receiver

    Posted by John Rankin on Jul 5th 2025

    I am very happy with this Faxon 338 arc upper receiver. The larger feedramps is ideal for Hornady 338 arc suppressed ammo. Feeds perfectly.