Spikes Tactical Billet Upper - Gen II - Mil-Spec Barrel Nut

Spikes Tactical Billet Upper - Gen II - Mil-Spec Barrel Nut, SFT52B2

Spikes Tactical Billet Upper - Gen II - Mil-Spec Barrel Nut, SFT52B2

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Spikes Tactical Billet Upper - Gen II - Mil-Spec Barrel Nut, SFT52B2

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Spikes Tactical Billet Upper - Gen II - Mil-Spec Barrel Nut, SFT52B2

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Spikes Tactical Billet Upper - Gen II - Mil-Spec Barrel Nut, SFT52B2

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This item may be regulated for export by the U.S. Department of State or the U.S. Department of Commerce. Please see our Export Policy prior to placing your order.

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Questions & Answers

Can I attach 7.62x39 barrel to it? Expert Answer

No, this will not accept a 7.62x39 barrel.

by Robert G., Gear Expert, September 30, 2019

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Hi, want to know if this fits well with spikes tactical rare breed lower receiver ? Expert Answer

Yes, this upper would be compatible with the rare breed lowers.

by Tom B, Gear Expert, September 20, 2021

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Customer Reviews

Helpful Positive Review

I'd recommend this product to others for their builds but not for my intended purpose by JD89889, Verified Owner, September 17, 2021

I purchased this upper because of another review and having read elsewhere that the inside diameter for the barrel is undersized compared to mil spec requiring the use of a heat gun to fit the barrel. (similar to what JP calls thermofitting). Ideally...
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2/2 found this helpful

Helpful Positive Review

billet receiver by Miles, September 18, 2020

I have this receiver for an AR target rig setup using a Bruce Finnegan barrel and a Battle Arms enhanced bolt carrier group. I could not be happier with the attention to detail that this receiver has. Absolutely no sharp edges near bear surfaces, ...
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5/6 found this helpful

Helpful Positive Review

great quality and great looking 2 by bisrael, Verified Owner, June 6, 2019

the review title basically says it best....BUT the review has to be of a certain length. this is a high quality upper and it looks amazing with the spikes billet lower...you won't be disappointed in this one...in form or function. A+++

2/3 found this helpful

Helpful Positive Review

Pure awesomeness. by SpudsMaghee, Verified Owner, October 28, 2020

I wanted something unique and perfect. I used to not like spikes but this billet upper and lower I also have changed my mind. Legit! It mates well with my spikes lower duh. My ar pistol feels like a toy it's like 5 lbs lighter than my ar10 pistol.

2/2 found this helpful

Most Recent Reviews

Spikes Billet Upper by Dustin, Verified Owner, February 27, 2026

Very nice. Quality is phenomenal, and it has the forward assist feature. T Marks are an added bonus

Most Recent Reviews

Spikes tactical quality parts at Opticsplanet.com affordable prices. Sign me up every time! by deprazor, Verified Owner, November 22, 2025

I've been a fan of Spikes Tactical for years. My first foray into building an AR was well supported by parts from Spikes Tactical. I love their spider logo. The parts are built to mil-spec standards, fit properly EVERY time, flawlessly machined, flaw...
Read More...

Read All 14 Reviews

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Color:: Black
Finish:: Anodized
Fabric/Material:: 7075 T6 Construction
Gun Model:: AR-15
Additional Features:: Mil-Spec Barrel Nut
Condition:: New

Code: 2A8-UPR-BUG2MSBN-SFT52B2

MPN: SFT52B2

UPC: 810083267760

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List: ~~$270.00~~Save 10%

$243.00

Expert Advice Request for Quote Price Match

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

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.

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Product Info for Spikes Tactical Billet Upper - Gen II - Mil-Spec Barrel Nut

The Spike's Tactical billet upper Gen II receiver is not just another different cosmetic alternative to forged upper receivers but it's actually designed with functional upgrades that aren't available on other billet upper receivers!

It is machined out of 7075 billet aluminum and finished off in a durable Type III Hardcoat anodized. Of course, we cut the M4 feed ramps before the anodizing process to avoid reliability issues down the road. We also flared the side walls of the receiver to eliminate accidental bolt release problems and we also machined the upper receiver in a way that lets you use the popular Magpul BAD lever or other aftermarket bolt catch levers which most other billet upper receivers don't let you do.

NOTE: Our billet upper is not compatible with all aftermarket bolt catches.

Specifications for Spikes Tactical Billet Upper - Gen II - Mil-Spec Barrel Nut:

Manufacturer:	Spikes Tactical
Color:	Black
Finish:	Anodized
Fabric/Material:	7075 T6 Construction
Gun Model:	AR-15
Additional Features:	Mil-Spec Barrel Nut
Condition:	New
Country of Origin:	USA

Features of Spikes Tactical Billet Upper - Gen II - Mil-Spec Barrel Nut:

Gen II Billet Upper Receiver
7075 T6 Construction
Forward Assist
Ejection Port Door (made in specialized factories)
Ejection Port Door Spring
Ejection Port Door Rod
Weight: 10.4oz

Package Contents:

Spikes Tactical Billet Upper - Gen II - Mil-Spec Barrel Nut

What firearm models does the manufacturer say Spikes Tactical Billet Upper - Gen II - Mil-Spec Barrel Nut is compatible with?

The manufacturer says that Spikes Tactical Billet Upper - Gen II - Mil-Spec Barrel Nut is compatible with AR-15

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