Remington Defense MSR .338 Lapua Magnum, 26" Fluted Barrel, AAC Titan QD Suppressor, Multi-Caliber System with 24" .300 WM Barrel, FDE
This Remington Defense Model MSR is a factory multi-caliber precision system configured in .338 Lapua Magnum with a 26-inch fluted heavy-profile barrel and includes a 24-inch .300 Winchester Magnum barrel. It features the MSR quick-change barrel interface, an integral monolithic top Picatinny rail with 30 MOA cant, and an adjustable precision stock. The package includes an AAC Titan QD suppressor with matching QD brake/adapters, plus magazines, tools, and field-ready cases. Notable for its selection by USSOCOM in 2013 as the Mk 21 PSR, this is a collectible, U.S.-made defense-grade system.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling - Intact, well-defined lands and grooves.
Specific Condition Notes: The rifle presents with light scratches and blemishes, and the paint is worn at the action and barrel nut. The muzzle device shows carbon buildup. The AAC Titan QD suppressor has scratches and blemishes with baffles intact; carbon buildup and areas of blue/green oxidization are present.
What’s Included
- Suppressor: Advanced Armament Corp. (AAC) Titan QD suppressor (marked .338LM/.300WM/7.62MM)
- Barrel: .300WM barrel (24") with AAC Titan QD brake/adapter installed
- Cleaning Kit: .300WM bolt face cleaning kit
- Cleaning: Bore rod and chamber guide
- Spare Parts: Firing pin
- Small Parts: Screw covers
- Hardware: Screws
- Rail Accessories: Picatinny rail adapters/sections
- Tools: Tools for barrel swap
- Case: Multicam camouflage soft rifle case
- Case: Pelican hard case for parts/tools
- Bipod: Atlas bipod (installed)
- Stock Accessories: Recoil pad spacers
- Magazines Included: 2x 6rd mags & 2x 5rd mags
- MagNotes: Detachable box magazines marked "338 LM" and "300 WM"
The Model MSR is a purpose-built, multi-caliber precision bolt-action system from Remington Defense, notable for its 2013 selection by USSOCOM as the Mk 21 PSR. This example is configured in .338 Lapua Magnum and finished in Flat Dark Earth (tan), with a right-hand bolt and a large tapered bolt knob.
The quick-change barrel interface supports caliber swaps, and this package includes a second .300 Winchester Magnum barrel (24 inches) with an AAC Titan QD brake/adapter installed. The primary .338 Lapua barrel is 26 inches, fluted, and heavy-profile for stability and heat management.
An AAC Titan QD suppressor is included. It mates to the supplied QD brake/adapters via a ratcheting mount and is marked for .338LM, .300WM, and 7.62MM use. This pairing provides a complete, ready-to-mount silencer solution with the correct interfaces.
The chassis features a monolithic handguard with accessory rail segments and an integral monolithic top Picatinny rail with 30 MOA cant for extended elevation travel. The adjustable precision stock allows cheek height and buttpad adjustments, with a 13.0-inch length of pull. An Atlas bipod is installed for stable shooting support.
Capacity is declared at 7+1. The system includes both .338 LM and .300 WM marked detachable box magazines, caliber-specific cleaning items, barrel-swap tools, and both a Multicam soft case and a Pelican hard case for parts and tools.