Split Lower Firearms

Our Mission

To provide an AR lower that is the quickest and easiest to build.

The SLR80 is the only AR 80% Lower Receiver that has a fully milled fire control group pocket. It’s unique 3 piece designs allows for a whole to number of design improvements. The SLR80 was designed using the latest in CAD and Rapid Prototyping Technology.

Three piece design

The three piece design allow for a few distinct advantages. First and foremost, it allows the lower to be sold as an 80% but still having the fire control group pocket milled out. It allows for more precise machining of the magazine well as it is accessible in way that was never possible before.

The three piece design also allows for the quick and simplest completion process of any 80% lower available today. A few through holes, attache the three pieces with a few screws. And your done.

Advanced Prototyping

The SLR80 was designed using advanced additive manufacturing technology and advanced 3D modeling Technics allow us to test hundreds of versions be before any live testing.

The SLR80 is currently patent pending and will be available soon.

The SLR80 is a patent pending product showcasing a new three piece AR lower design. The SLR80 is designed and manufactured by Split Lower Firearms.

Project Updates

The SLR80 is a work in progress with hopes and hitting the retail market soon. Below are some project highlights.

The First Design and Patent

The first version and patent was finished months ago. This was a huge accomplishment for Split Lower Firearms small team.

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First Assemble

Seeing all the pieces install for the first time was a great day. After years of hard work, having it start to come to life was amazing.

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Continued Improvement

As we continue to prepare for the next phase in the project, “live fire testing”, we keep looking for ways to improve the overall product ensure only the best will be delivered to our customers.

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Contact Us

Need an update? Let us know. Have a question? Drop us a line. Please contact us for any reason.

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