Aviator Arms

Aviator Arms X-1 - Bi-Axial Recoil Device

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Aviator Arms X1 Pistol Recoil Device 

The patent pending Aviator Arms X-1 bi-axial pistol recoil system is named after the Bell X-1, the first manned aircraft to break the sound barrier in level flight.  The Bell X-1 was a groundbreaking aircraft, and the first of the “X-Planes” series of aircraft developed to push the limits of aircraft technology.  In much the same way, the Aviator Arms X-1 is the first product that significantly reduces the size of the AR-15 receiver assembly, allowing a true pistol to be built on the AR-15 platform.  Other products that have sought to shorten the AR-15 for the purpose of pistol builds either don’t shorten the receiver appreciably, use a high degree of proprietary parts, or do not allow for the pistol to be fired in its most compact form.


The X-1 solves the AR-15’s size disadvantage when building a compact variant by relocating the recoil spring to the top of the upper receiver and positioning the bulk of the buffer inside the bolt carrier group.  It does all of this without using any proprietary parts other than the buffer and recoil spring assembly.  All that is required to install the X-1 bi-axial pistol recoil system is simply remove the stock buffer tube and associated parts and install the X-1 pass-through collar and receiver end plate included with the kit.  The recoil assembly can then be mounted on top of the upper receiver to the standard picatinny rail.  Once mounted, the spring loaded buffer assembly is then rotated into position, indexing it into the back of the bolt carrier and installation is complete.


The X-1 can be installed on any mil-spec flat-top upper receiver and does not require any modifications of existing parts, nor does it permanently alter the firearm.  It has been tested on a wide variety of upper/lower receiver combinations, both forged and billet, with multiple types of bolt carrier groups from various manufacturers all with excellent results.  It has also been tested with multiple variants of .223 Remington, 5.56 NATO, and 300 Blackout ammunition in  supersonic and subsonic loadings, suppressed and unsuppressed covering the most popular ammunition types for the platform.  The X-1 has a lifetime warranty against manufacturer defects.  The X-1 is made with pride in the USA to adhere to Aviator Arms “High Speed, Low Drag” philosophy to bring high quality, technologically innovative, and revolutionary products to the firearms industry.

Aviator Arms LLC warrants to the original end user customer of its manufactured Products (wearables and other branded items such as tumblers, stickers, etc. not included) that its products are free from defects in material and workmanship. Aviator Arms LLC warrants to the original end user of its Products that Products that are damaged during use will be replaced. Aviator Arms LLC will, at its option, either repair or replace any part of its products that prove defective by reason of improper workmanship or materials. Repaired parts or replacement products will be provided by Aviator Arms LLC on an exchange basis and will be either new or refurbished to be functionally equivalent to new. If Aviator Arms LLC is unable to repair or replace the product, it will refund the current value of the product at the time the warranty claim is made. This limited lifetime warranty does not cover any damage to any Product that results from improper installation, abuse, misuse, natural disaster, abnormal mechanical or environmental conditions, repair, or modification. This limited lifetime warranty does not apply to improper installations of Products that result in peeling, cracking, or wearing of Products. This limited lifetime warranty does not apply to any Products on which the original identification information has been altered, obliterated or removed, has not been handled or packaged correctly, has been sold as second-hand or has been resold contrary to applicable law. This limited lifetime warranty covers only repair, replacement or refund for defective Products or for Products that are damaged during use. Aviator Arms LLC is not liable for, and does not cover under warranty, any costs associated with removing or installing Aviator Arms LLC’s Products. Licensee/Reseller shall obtain Proof of purchase from the original end user in order to request warranty service. Licensee/Reseller shall have no claim for warranty service without Proof of Purchase from the original end user. Aviator Arms LLC reserves the right to change the terms of the limited lifetime warranty at any time and without prior notice.

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