Łoże LSS-XL - długi zamek

The LSS-XL chassis system is a variant of our highly popular LSS chassis. The LSS chassis was designed for compact use, short barrelled rifles. A large amount of customers really liked the LSS chassis, but wanted to use a fixed buttstock, and use it with longer barrel systems. 

This prompted us to design the LSS-XL chassis system which has a fore-end extended by 3" and is designed to accept fixed rifle stocks without the need of using any adapters. In addition the Lengt of Pull (LOP) is 1" shorter than the standard LSS, as fixed rifle stocks generally are longer than collapsible.

The chassis is designed with v-shaped bedding, allowing you to drop your rifle right in without the need for additional bedding. The bottom of the action housing has been kept round and close to the action without touching keeping maximum strength. The chassis also free floats barrels up to 1" in diameter at the muzzle end.

IMPORTANT NOTES:

Using our Skeleton Rifle Stock V3 - We do not recommend using our Skeleton Rifle Stock V3 on the LSS-XL. It will work on our LSS using the fixed stock adapter. But on the LSS-XL with a shorter Length of Pull the cheek riser will be in the way of the bolt. (it does work on some actions if the cheek riser is raised). But please check our Skeleton Rifle Stock Light, which was designed specifically for this chassis!

Please note important action specific information at the bottom of this page.

MOUNTING AND COMPATIBLE ACCESSORIES

The LSS chassis is designed to accept any AR-15 butt-stock and pistol grip (purchased separately), offering the option to customize from the wide variety of  Accessories available on the market.

The LSS chassis uses external box style magazines in .300WM or .338LM magazines for Long Action rifles, and supports installation of bolt on MIL-STN-1913 accessory mounting rails. Mounting holes are spaced for Magpul style L5 (11 slots) and L3 (7 slots) rails (1.600” / 3.200”) to be used on the bottom of the fore end up to 6.5" in length.

The max thickness of recoil lug recommend is .350" (8.9mm)

SPECIFICATIONS

• Increases accuracy by up to 21%
• CNC Machined from 6061 Aluminum
• Cerakote Finish in Black or Flat Dark Earth
• Hole spacing for Magpul L5(11slot) and L3(7slot)Rails
• Designed for fixed AR-15 buttstocks, including Skeleton Rifle Stock V3
• Accepts most AR-15 Pistol Grips
• Lightweight, free-floating modular fore-end
• Will accommodate barrels up to 1" diameter.
• Compatible with AICS style magazines in 300WM, 30.06, 338LM (LA). (Long Action Magazine length 3.715)
• Weight: 1.8lb - 2.1lb

WHAT YOU GET, AND WHAT YOU NEED

The LSS-XL chassis system comes as a 1-piece chassis, with all required mounting hardware included. This includes new action screws, and a screw for the pistol grip.

To complete this chassis on your rifle, the additional items you need to purchase are:

• Any AR-15 buttstock. (Fixed stocks are best suited. For Collapsible stocks consider our LSS Chassis)
• A buffer tube for your buttstock. (Both milspec and commercial work on our chassis)
• An AR-15 Pistol Grip. Ideally without a beavertail, or use a soft (bendable) beavertail.
• At least one magazine

Please also see our HS3 Chassis System.

IMPORTANT NOTES

Howa 1500 / Weatherby Vanguard Long actions
This is the only action that we manufacture a chassis for, that has a flat bottom action. For this reason only our Polymer magazines will work. It will be a tight fit, and the magazine may need to be modified slightly for a good fit and proper feeding.

Savage models 110, 111, 112, 116
For rifles with the bolt release at the bottom, the bolt release can be engaged through the side of the chassis, using a pin or tool. (Not included)

Tikka T3 - Long Calibers
Only our Metal 3.56 magazine will fit with the chassis for this action and needs to be purchased separately.