DS1913 v2 AR15 .22 LR

DS1913 v2.0 Receiver Details

Attention all 3D gun enthusiasts!

If you’re looking for an AR-15 lower that’s optimized for an Atchission/CMMG .22 LR conversion kit, then you’ll definitely want to check out the DS1913. This impressive lower is packed with features that are sure to impress even the most discerning shooter.

One of the standout features of the DS1913 .22 LR is the 1913 rail on the rear, which allows for easy mounting of compact braces or stocks. This makes it a great choice for anyone who wants to customize their AR-15 for maximum comfort and accuracy.

Another great feature of the DS1913 is the bolt-catch delete, which provides added reinforcement and helps to improve overall reliability. This is a great feature for anyone who wants to ensure their AR-15 is always ready to go when needed.

In addition to these impressive features, the DS1913 also includes a number of quality-of-life updates that are sure to make your shooting experience even better.

For example, the takedown spring geometry has been optimized for maximum performance and reliability, while the off-set takedown stand-off helps to increase print life and ensure that your AR-15 stays in top condition for years to come.

Warning: Do NOT under any circumstance use this design with ANY upper receiver that requires a buffer tube. Catastrophic, and FATAL, damage WILL occur.

DS1913 v2 AR15 22lr in the Wild

Photos

Video

Upgraded DS1913.2 test firing!

More of a formality tbh as this shares a common baseline with the PRM-9 and Perun lower, which both are more intense than .22.

Curiously, Winchester .22LR Western cycles this short barrel, but it fouls so fast. pic.twitter.com/kFxYZUCMe2

— Vinh Nguyen 凯文荣阮 (@nguyenkvvn) March 31, 2023

DS1913 v2.0 AR15 Tech Specs

Vinh made a large number of updates for the 2.0 version of the DS1913.2.

These include reintroducing the takedown detent system, eliminating a “friction fit” of the receivers, takedown standoffs (thanks to Hoffman for this idea), and tweaking magazine fitment.

It also rebases the foundation away from the Disruptive Solutions model (self-described as untested) to the AR-15 CAD and Technical Data package available from The Gatalog.

While this model retains the DS1913 name, v2.0 is considered a successor to the DS1913 v1.2, rather than an update.

Required Parts for the DS1913 v2.0 AR15

Prerequisites

AR-15 Upper Receiver Assembly

You will need one of the following for the DS1913 v2.0:

• Dedicated .22 LR bolt and barrel
• CMMG .22 LR conversion
• Atchison-based .22 LR conversion

AR-15 Lower Parts

You will need a complete AR-15 Lower Parts Kit, including:

• Trigger Bow
• Trigger Bow Spring
• Hammer
• Hammer Spring
• Fire Selector
• Fire Selector Detent
• Fire Selector Detent Spring
• 2x Takedown Detent
• 2x Takedown Detent Spring
• Magazine Release
• Magazine Release Button
• Magazine Release Spring
• The AR-15-compatible grip of your choosing

Hardware

• 2x M4 Steel Hex Nut (MCC 90592A090)
• 2x M4x30 Socket Head Screw (MCC 91290A176)
• OR 2x M4x22 Socket Head Screw (MCC 91290A168)

Magazine

• CMMG AR-15 .22 LR Conversion magazines

Materials Required

The DS1913 .22 LR requires basic gunsmithing tools and a 3D printing setup, i.e. and Ender 3.

Using a dialed-in Ender 3 with widely available PLA+ filament will get the job done in most cases.

3D Printed

• Lower Receiver

Tools Required

• Gunsmithing Punch Set
• Metric Drill Bit Set
  • 2.5mm Drill Bit
  • 3.5mm Drill Bit
  • 4.0mm Drill Bit
  • 6.5mm Drill Bit
• Large Stick File
• Narrow, but not needle nose, pliers

The following tools may help, but are not required:

• Flathead screwdriver

Suggested 3D Print DS1913 v2.0 AR15 22lr Settings

The slicer settings for the 3D-printed DS1913 v2.0 AR15 22lr are as follows:

Nozzle Size: 0.4mm

Layer Height

• Height: 0.16mm
• Initial Height: 0.16mm

Walls: 8

Infill Density: 100%

Supports: Tree Supports

Bed Adhesion: Brim

Filament

• PLA+ (eSun, Polymerk or simular)

Changelog

Release v2.0

• Rebased the model away from Disruptive Solutions AR-15 to the Gatalog release of the AR-15 Technical Data Package
• Restored takedown spring detent functionality for front and rear
• Introduced takedown standoffs
• Optimized grip screw geometry

Release v1.2

• Refreshed files for the final release.

Release v1.1

• Revised right-hand selector clearance
• Modified thin wall in magazine release button extrusion

Release v1.0

• Initial release

Overall, the DS1913 is an excellent choice for anyone who wants a high-quality AR-15 lower that’s optimized for an Atchission/CMMG .22 LR conversion kit.

With its impressive features and quality construction, this lower is sure to provide reliable performance and maximum customization options for years to come.

3D Print your 22lr battle rifle today!