Out of stock
MR L5 Bolt Assembly for 44MAG/50AE Firearms
$226.39
- Caliber-Gauge:
- 44 Magnum
The Magnum Research MR L5 Bolt Assembly for 44MAG/50AE is a dedicated bolt carrier designed for shooters converting their centerfire pistols to larger-bore magnum calibers. If you own a Magnum Research firearm chambered in .357 Magnum and want to unlock the power of .44 Magnum or .50 Action Express, this bolt assembly is a core component of that conversion—working alongside a compatible barrel and magazine to transition your pistol to the new caliber. It's built to Magnum Research's standards for reliability and fit.
Conversion builds demand precision parts that work in perfect concert. This L5 bolt assembly is engineered for the specific dimensions and pressures of .44 Magnum and .50 AE ammunition, so proper function and safety depend on pairing it with the correct barrel and magazine for your chosen caliber. If you're a handloader or a magnum-round enthusiast looking to maximize the versatility of your Magnum Research platform, this bolt assembly is the lockwork that ties it all together.
Before ordering, confirm your firearm model and your target caliber—this assembly is caliber-specific and must be matched with the appropriate conversion barrel and magazine to function correctly. Installation should be performed by someone with gunsmithing knowledge or a qualified armorer, as bolt assemblies are fitted components that require careful handling and setup.
Specifications
| Brand | Magnum Research |
| Product Type | Bolt Assembly |
| Calibers | .44 Magnum, .50 Action Express |
| Designation | L5 |
| Application | Conversion from .357 Magnum |
Frequently Asked Questions
What do I need to convert my .357 Magnum Magnum Research pistol to .44 Magnum or .50 AE?
This L5 bolt assembly is one of three essential components: you'll also need a compatible barrel in your target caliber and a magazine designed for that round. All three parts must work together for a safe, reliable conversion.
Is this bolt assembly compatible with all Magnum Research models?
The L5 is engineered for specific Magnum Research firearm platforms. Confirm your exact model before purchasing to ensure proper fit and function.
Can I install this bolt assembly myself?
Bolt assemblies are fitted components that require careful installation. We recommend having the work done by a gunsmith or qualified armorer familiar with your firearm platform.
