SR-15 E3 MOD 2 UPPER RECEIVERS Reviews & Ratings

Knight’s Armament Company, or KAC, is known to many for their top tier, military issued rifles and parts.

Brownells is proud to offer this line of Knight’s Armament SR-15 MOD 2 complete upper receivers that allow you to easily complete a build or upgrade a rifle with battle proven quality. Built around a chrome lined, cold hammer forged barrel in your choice of 11.5”, 14.5” 16” & 18” lengths with a Mod 2 gas block, and fitted with a KAC 3 prong QDC suppressor compatible flash hider.

The Knight’s Armament SR-15 MOD 2 complete upper receivers feature the URX M-LOK handguards that each have 2 anti-rotation QD sling swivel sockets.

On top you’ll find the KAC Micro Front Sight and at the rear the KAC 200-600m micro rear sight that is flip up and adjustable for windage and elevation.

The included bolt carrier group features the updated E3.2 bolt that has rounded locking lugs that work in conjunction with the E3 barrel extension. The E3.2 bolt features unique dual ejectors for a reliable and consistent ejection.

Also included is an extended latch charging handle. The 14.5” MOD 2 complete upper receivers’ flash hider does not come from the factory pinned to the barrel.

Knight’s Armament HH buffer comes with the 11.5" and 14.5" upper receivers only, as the shortened gas systems require it for proper function.

Note: No longer includes M-Lok Rail Cover.

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Reviews Summary

Customers rave about the Knight's Armament SR-15 E3 MOD 2 Upper Receivers for their unbeatable quality, reliability, and included features such as the latest E3.2 bolt and ambidextrous charging handle. While some note the price is high, they confidently assert it's worth every penny for a superior product that excels in durability and accuracy.

What Reviewers Are Saying

Product Quality

100%

Reviewers consistently highlight the exceptional quality of the SR-15 E3 MOD 2 Upper Receivers, often describing them as reliable, durable, and accurate. Many emphasize the meticulous fit and finish, further asserting that the upper is worth the investment due to its superior craftsmanship.

Included Features

80%

Many customers praise the comprehensive features that come with the upper, including the E3.2 bolt, ambidextrous charging handle, and flip-up sights. This aspect of the product enhances its value, as buyers appreciate having all necessary components included straight out of the box.

Value for Money

60%

While the price of the SR-15 E3 MOD 2 is noted as high, most reviewers unanimously agree that it offers excellent value for the quality received. Customers confidently state that the investment pays off in performance and reliability, making it a top choice for users seeking a premium upper receiver.

Durability and Reliability

70%

Customers express confidence in the upper's durability, often suggesting that it's capable of withstanding extreme conditions. This theme is reinforced by the assertion that the product could survive an 'apocalypse,' appealing to those seeking a robust and reliable firearm component.

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Bombproof Upper with all the Trimmings

Knight's Armament is in a league of its own! Came with all the trimmings, (3.2 bolt, ambi charging handle, BUIS's, flash hider/suppressor mount, the list goes on). If you want an upper that would likely survive an apocalypse while still being reliable, durable & accurate buy a Knight's. You will get what you pay for with their uppers!

by Trev on May 30, 2023

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Great Upper!

This upper is fantastic it has the latest E3.2 bolt with the black firing pin. The gas system has the new black colored gas tube, along with the ambi charging handle. The current description does not reflect that this is the newest edition of the uppers. This upper is the absolute best that there is when it comes to the direct impingement platform. I know this seems expensive for an upper, but it is worth it. Some may say that other brands are just as good or better, but you will always want a Knights until you get one.

Best upper out!

I just received this upper and am insanely happy. Contrary to the questions below mine came with the 3.2 bolt and ambi charging handle as with all newer sr-15 models.

Knights E3 Bolt upper

Knights E3 is a standard AR bolt for 300 BLK and %.56mm

Absolutely flawless

Excellent fit and finish Legendary Knight quality E3 master race bolt Knight flip up sights All things considered, a very good deal for such a quality upper