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Questions & Answers
What is the pin above the gas tube hole used for?

The hole on top of the gas tube is for an anti rotation pin when using a JL Billet handguard. Pay close attention to this upper, it has flared areas behind the barrel nut threads and is not mil-spec. Only select handguards including the JL Billet rails will work without modifying the upper. I'm speaking from personal experience, I own several JL Billet lowers and uppers.

by Thisguyoverhere, Verified Owner, June 16, 2020
How will be the matching of this with JL non-skeletion 80% lower ? Manufacturer Answer

They will match up, but the cosmetics are really intended to go with a JL SKLTR lower receiver.

by JL Billet, Manufacturer, November 27, 2024
Customer Reviews
Helpful Positive Review
Great product. Delivered in a timely fashion. My only complaint is the depiction of a complete upper and lower set then calling it an upper. That's deceptive, to say the least. Yes. Read the ad copy. Do not just look at the pretty pictures.
4/4 found this helpful
Helpful Positive Review
My upper had some finish issues but JL was very accommodating in resolving the issue. Otherwise its a very nice upper. The machining seems nice and it matches their lower perfectly as you would expect.
1/1 found this helpful
Helpful Positive Review
Fits PSA Lower Perfectly! by Eric, Verified Owner, April 7, 2021
Bought this after buying an Odin Works upper that would not fit a PSA lower. Odin also doesn’t offer a standalone lower! So took another chance and bought this JL Billet upper. It fits perfectly! Highly recommended.
1/1 found this helpful
Most Recent Reviews
barrel nut poor dezine by bear, Verified Owner, June 21, 2023
it is pricey for the upper and lower, everything from jb billet is the worse thing is there barrel nut that you get with the hand guard,it is a real trick trying to get it tight with out stripping it out , thier is not much information on it, i mess...
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Most Recent Reviews
Hamdguard specific by eddie, Verified Owner, March 30, 2023
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Most Recent Reviews
Amazing upper by Dave, Verified Owner, February 10, 2021
The fit and finish is absolutely awesome. The aesthetics are great. CNC parts are always awesome. Fit my aero precision lower PERFECTLY. I wihch i could get my hands on a matching lower. I did mate a JL billet handguard to it. They make great product...
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Read All 6 Reviews
Color:
Black
Finish:
Type III Hardcoat Anodized
Fabric/Material:
7075-T6 Aluminum
Caliber:
5.56x45mm NATO
Gun Make:
DPMS
Gun Model:
AR-15
Condition:
New

Code: 3KR-UPR-JLURSAR15BU-JLB-SKLTR-UPR-A

MPN: JLB-SKLTR-UPR-A

UPC: 617407024579

List: $224.95Save 10%
$202.46

ATTENTION! We currently do not ship this product to P.O. Boxes, AK, CA, CT, DE, HI, MA, NJ, NY, U.S. Territories, or select Colorado locations. Please see our policies for more information or a detailed list of locations.

made-in-usa-flag Made in USA

Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.

Product Info for JL Billet AR 15 Lightweight Billet Upper Receiver

JL Billet Lightweight AR15 Upper Receiver is machined out of solid block of 7075-T6 US aerospace grade aluminum on 5 axis machining centers and held to the tightest tolerances and Mil-Spec standards. This upper has weight reduction cuts that give it a look that stands out among the rest and are designed to match our billet lowers to ensure a superior matched set for your next build. These can be purchased in raw aluminum or Type III hard black anodize. 7075 T-6 Aluminum Type III Hard Black Anodize Precision 5 Axis CNC Machined 6.96 oz.image

WARNING: California`s Proposition 65

Specifications for JL Billet AR 15 Lightweight Billet Upper Receiver:

Manufacturer: JL Billet
Color: Black
Finish: Type III Hardcoat Anodized
Fabric/Material: 7075-T6 Aluminum
Caliber: 5.56x45mm NATO
Gun Make: DPMS
Gun Model: AR-15
Condition: New
Country of Origin: USA
Weight: 0.44 lb

Features of JL Billet AR 15 Lightweight Billet Upper Receiver

  • M4, AR15 Billet upper receiver.

Package Contents:

  • JL Billet AR 15 Lightweight Billet Upper Receiver

JL Billet AR 15 Lightweight Billet Upper Receiver Orderable Models

List of Orderable Models

  • JL Billet Lightweight Billet Upper Receiver, AR 15, Black, JLB-SKLTR-UPR-A , MPN: JLB-SKLTR-UPR-A , UPC: 617407024579 , Code: 3KR-UPR-JLURSAR15BU-JLB-SKLTR-UPR-A
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Last updated 2026-07-17 UTC.