LARS Rear Bag Rider Slime Line – Picatinny Mounted Precision Rifle Support
The LARS Rear Bag Rider is a lightweight, rigid rear rifle support designed to improve stability, straight tracking and consistency when shooting precision, long-range and ELR rifles from a rear shooting bag.
Developed from practical shooter feedback, the LARS Rear Bag Rider provides a longer, flat and stable contact surface between the rear of the rifle and the shooting bag. This helps the rifle move more consistently during recoil and provides the shooter with a predictable rear support platform.
Designed by long-range shooter and firearms designer Dr. Rastislav Králik, the LARS Rear Bag Rider combines a lightweight carbon polymer body with a robust aluminium QD Picatinny mount, allowing fast installation and removal from compatible rifle chassis and stocks.
Designed for Long-Range & Precision Shooting
Rear rifle stability is a critical part of a consistent shooting position.
Conventional rifle stocks and chassis can have relatively short, angled or irregular surfaces at the rear. When used directly with a rear shooting bag, these geometries may affect how smoothly and consistently the rifle tracks.
The LARS Rear Bag Rider creates an extended, flat contact surface underneath the rear section of the rifle.
The result is a more stable and predictable interface between the rifle and the rear bag – particularly useful for Long Range, Extreme Long Range (ELR), F-Class, precision rifle shooting, bench shooting, load development and accuracy testing.
Extended Flat Bag-Riding Surface
The bottom of the LARS Rear Bag Rider features a long, flat horizontal profile designed specifically for use with rear shooting bags.
The extended riding surface adds approximately 100 mm of usable support length beneath the rear section of the stock or chassis.
This additional contact area provides a natural and stable interface with the shooting bag and helps maintain consistent rifle positioning.
The flat horizontal geometry is designed to promote straight and predictable rearward movement during recoil.
Improved Rifle Tracking
Consistent tracking is particularly important in precision and long-range shooting.
The geometry of the LARS Rear Bag Rider helps the rifle move more linearly against the rear bag during recoil rather than interacting with the bag through an irregular or angled stock surface.
Its smooth, rounded profile is designed to reduce unnecessary snagging and friction against shooting bags and surrounding equipment.
This combination provides a clean and functional interface between the rifle and rear support.
Better Stability and Shot Observation
The LARS Rear Bag Rider was originally developed in response to practical feedback from shooters looking for improved rear rifle stability.
A more stable and predictable rifle position can help the shooter maintain better control of the shooting platform and observe the rifle’s behavior during and after the shot.
This is particularly valuable in long-range and ELR shooting, where maintaining a consistent shooting position and observing impacts are important parts of making subsequent corrections.
Designed for Large Precision Rifles
The LARS Rear Bag Rider was developed with large precision and long-range rifle systems in mind.
Its construction is rigid and stable while remaining lightweight thanks to the use of a carbon polymer body.
The system is suitable for shooters who require a practical rear support solution without adding unnecessarily heavy components to the rifle.
Carbon Polymer Construction
The main body of the LARS Rear Bag Rider is manufactured from carbon polymer, combining low weight with the rigidity required for a precision rifle accessory.
This material choice allows the rider to maintain a substantial bag-contact surface while keeping overall weight low.
The minimalist construction follows the LARS engineering philosophy: every component should have a clear mechanical purpose.
Aluminium QD Picatinny Mount
The LARS Rear Bag Rider uses an aluminium quick-detach Picatinny rail mount.
This allows fast installation on compatible rifle stocks and chassis equipped with a Picatinny rail.
The QD mounting system also makes it possible to remove the rider quickly when it is not required or transfer it between compatible rifle configurations.
No complicated permanent installation is necessary.
Simply attach the QD mount to a compatible Picatinny rail, secure the system and the rifle is ready for use with a rear shooting bag.
Compatible with Picatinny-Equipped Rifle Stocks and Chassis
The LARS Rear Bag Rider can be installed on compatible new and older rifle stocks and chassis equipped with a suitable Picatinny rail.
This mounting concept provides broad compatibility without requiring the rider to be permanently integrated into one specific rifle platform.
For shooters using multiple precision rifle configurations, the quick-release mounting system provides additional flexibility.
Minimalist Functional Design
The distinctive shape of the LARS Rear Bag Rider is driven primarily by function.
Its extended horizontal base provides the required contact surface, while the rounded external geometry reduces unnecessary edges that could interfere with shooting bags or equipment.
The result is a clean, minimalist precision rifle accessory that complements modern rifle chassis while providing a practical improvement to the rear support system.
Ideal Applications
The LARS Rear Bag Rider is particularly suitable for:
- Long Range shooting
- Extreme Long Range (ELR)
- F-Class shooting
- Precision rifle shooting
- Bench shooting
- Rear bag shooting
- Load development
- Ammunition testing
- Rifle accuracy testing
- Zero confirmation
- Large precision rifle systems
Key Features
- Extended rear bag riding surface
- Approximately 100 mm additional support length
- Flat horizontal bottom profile
- Designed to promote consistent rearward rifle tracking
- Rounded profile to reduce unwanted snagging
- Lightweight carbon polymer construction
- Aluminium QD Picatinny mount
- Quick installation and removal
- Compatible with suitable Picatinny-equipped rifle stocks and chassis
- Designed for large precision rifles
- Suitable for Long Range and ELR shooting
- Functional minimalist design
- Designed by long-range shooter and firearms designer Dr. Rastislav Králik
- Engineered by LARS
Technical Specifications
Product: LARS Rear Bag Rider
Product Type: Precision Rifle Rear Bag Rider
Mounting System: Picatinny Rail
Mount: Aluminium Quick-Detach (QD) Mount
Body Material: Carbon Polymer
Dimensions: 120 × 18 × 30 mm
Additional Bag Support Length: approximately 100 mm
Application: Long Range / ELR / F-Class / Precision Shooting
Compatible Platform: Suitable rifle stocks and chassis equipped with a compatible Picatinny rail
Why Use a Rear Bag Rider?
A precision rifle is only as stable as the platform supporting it.
The purpose of a rear bag rider is to provide a longer, flatter and more predictable surface between the rifle and the rear shooting bag.
Instead of allowing an angled or irregular stock surface to interact directly with the bag, the rider creates a dedicated contact surface optimized for shooting.
For long-range shooters, this can provide a more consistent shooting position, smoother tracking and easier management of the rifle on the rear bag.
Why Choose the LARS Rear Bag Rider?
The LARS Rear Bag Rider was not developed as a cosmetic accessory.
It was created to solve a practical problem identified through real shooting experience.
Its combination of a 120 mm compact body, approximately 100 mm extended support surface, carbon polymer construction and aluminium QD Picatinny mounting system provides a lightweight and functional solution for shooters looking to improve the rear support geometry of their precision rifle.
Simple.
Rigid.
Lightweight.
Functional.
LARS Rear Bag Rider – engineered for stability, consistency and precision.
LARS – Engineered Without Compromise.
