Marklin Rifles

(10,000 price results)

Sort by:

Most Relevant

SOLD

OPMOD EOTech Holographic Sight with EOTech Magnifier: This OPMOD EOTech holographic sight paired with an EOTech magnifier provides a versatile dual-optic setup designed for AR-platform rifles and other Picatinny-equipped firearms. The holographic sight o

2026

OPMOD EOTech Holographic Sight with EOTech Magnifier

Old Steel Historical Firearms LLCLittleton, CO

SOLD

ACOG-Style Prism Scope with RMR-Style Mini Red Dot Training Use Optic Combo: This ACOG-style prism scope paired with an RMR-style mini red dot provides a dual-optic training setup designed for AR-platform rifles and other Picatinny-compatible firearms. The primary optic offers

2026

ACOG-Style Prism Scope with RMR-Style Mini Red Dot Training Use Optic Combo

Old Steel Historical Firearms LLCLittleton, CO

SOLD

T-Eagle EOX 1.2-6x24 LPVO with Mount: This T-Eagle EOX 1.2-6x24 low power variable optic comes complete with a mount, providing a versatile sighting solution for AR-platform rifles and other Picatinny-equipped firearms. Featuring a magnif

2026

T-Eagle EOX 1.2-6x24 LPVO with Mount

Old Steel Historical Firearms LLCLittleton, CO

SOLD

Vortex SPARC Red Dot Sight with Monstrum 5x Magnifier: This setup includes a Vortex SPARC red dot sight paired with a Monstrum 5x magnifier, creating a versatile close-to-mid-range optic system for AR-platform rifles and other Picatinny-equipped firearms.

2026

Vortex SPARC Red Dot Sight with Monstrum 5x Magnifier

Old Steel Historical Firearms LLCLittleton, CO

SOLD

NC Star 3-9x ACOG-Style Scope with Micro Red Dot Dual Optic Setup: This NC Star 3-9x ACOG-style scope paired with a micro red dot provides a versatile dual-optic configuration designed for AR-platform rifles and other Picatinny-compatible firearms. The 3-9x magnified

2026

NC Star 3-9x ACOG-Style Scope with Micro Red Dot Dual Optic Setup

Old Steel Historical Firearms LLCLittleton, CO

SOLD

Magpul Picatinny Bipod Black: This Magpul bipod is designed for direct attachment to Picatinny rail-equipped rifles, providing a lightweight and stable shooting platform for precision shooting, hunting, and general range use. Cons

2026

Magpul Picatinny Bipod Black

Old Steel Historical Firearms LLCLittleton, CO

SOLD

Swampfox Liberator II Red Dot Sight: This Swampfox Liberator II red dot sight is a compact reflex optic designed for rapid target acquisition on AR-platform rifles, pistols, and other Picatinny-equipped firearms. Built for close-range sh

2026

Swampfox Liberator II Red Dot Sight

Old Steel Historical Firearms LLCLittleton, CO

SOLD

Lot of 2 Harris-Style Rifle Bipods Black: This lot includes two black Harris-style rifle bipods designed to provide a stable shooting platform for rifles used in precision shooting, hunting, and general range applications. Featuring the class

2026

Lot of 2 Harris-Style Rifle Bipods Black

Old Steel Historical Firearms LLCLittleton, CO

SOLD

Lot of 6 Various Picatinny Rail Lasers Rifle & Pistol Accessory Lot: This lot includes six various laser aiming devices designed for attachment to standard Picatinny rail systems. Suitable for use on compatible rifles, pistols, and other rail-equipped platforms, these

2026

Lot of 6 Various Picatinny Rail Lasers Rifle & Pistol Accessory Lot

Old Steel Historical Firearms LLCLittleton, CO

SOLD

Lot of 2 Harris-Style Rifle Bipods Black: This lot includes two black Harris-style rifle bipods designed to provide a stable shooting platform for rifles used in precision shooting, hunting, and general range applications. Featuring the class

2026

Lot of 2 Harris-Style Rifle Bipods Black

Old Steel Historical Firearms LLCLittleton, CO

SOLD

Lot of 3 Magpul PMAG 30-Round Magazines Black AR-15 Magazines: This lot includes three Magpul PMAG 30-round magazines in black, designed for AR-15 platform rifles chambered in 5.56/.223. Built from durable polymer construction, PMAGs are known for their reliabili

2026

Lot of 3 Magpul PMAG 30-Round Magazines Black AR-15 Magazines

Old Steel Historical Firearms LLCLittleton, CO

SOLD

Tipton Best Gun Vise Rifle Maintenance & Cleaning Vise: This Tipton Best Gun Vise is a durable and adjustable firearm maintenance platform designed to securely hold rifles and shotguns during cleaning, gunsmithing, and general maintenance. Built with a rig

2026

Tipton Best Gun Vise Rifle Maintenance & Cleaning Vise

Old Steel Historical Firearms LLCLittleton, CO

SOLD

2026

FZ Shoot Tactical Laser Module Rail-Mounted Aiming Device with Pressure Pad

Old Steel Historical Firearms LLCLittleton, CO

SOLD

Swampfox Red Dot Sight with Riser & Sightmark Magnifier: This setup includes a Swampfox red dot sight paired with a riser mount and a Sightmark magnifier, creating a versatile close- to mid-range optic system for AR-platform rifles and other Picatinny-equip

2026

Swampfox Red Dot Sight with Riser & Sightmark Magnifier

Old Steel Historical Firearms LLCLittleton, CO

SOLD

Amazing AR15 5.56 NATO 16" Barrel AR-15 Rifle with Muzzle Brake: Up for auction is a custom AR-15 chambered in 5.56 NATO. Featuring a 16-inch barrel, this rifle represents one of the most versatile and widely used configurations in the AR platform family. The barre

2026

Amazing AR15 5.56 NATO 16" Barrel AR-15 Rifle with Muzzle Brake

Old Steel Historical Firearms LLCLittleton, CO

SOLD

Aero Precision M4E1 Receiver Set AR15 Matched Upper & Lower: Up for auction is an Aero Precision M4E1 Receiver Set. Widely regarded as one of the finest foundations for a custom AR-15 build, the M4E1 receiver set combines precision machining, enhanced features,

2026

Aero Precision M4E1 Receiver Set AR15 Matched Upper & Lower

Old Steel Historical Firearms LLCLittleton, CO

SOLD

Aero Precision M4E1 Matched Receiver Set AR15 Upper & Lower Receivers: Up for auction is an Aero Precision M4E1 Matched Receiver Set. Recognized throughout the firearms industry as one of the premier foundations for a custom AR build, the M4E1 receiver set combines outst

2026

Aero Precision M4E1 Matched Receiver Set AR15 Upper & Lower Receivers

Old Steel Historical Firearms LLCLittleton, CO

SOLD

Aero Precision X15 Receiver Set: The Aero Precision X15 receiver set is a forged AR-15 matched upper and lower combination thats widely used as a solid, no-nonsense foundation for custom builds. Its part of Aeros more mil-spec style

2026

Aero Precision X15 Receiver Set

Old Steel Historical Firearms LLCLittleton, CO

SOLD

AR-15 5.56 NATO 7.5" Upper Receiver Free Float KeyMod Handguard Pistol Upper: Up for auction is an AR-15 upper receiver assembly chambered in 5.56 NATO. Featuring a compact 7.5-inch barrel and a free-float KeyMod handguard, this upper delivers a highly maneuverable and modern c

2026

AR-15 5.56 NATO 7.5" Upper Receiver Free Float KeyMod Handguard Pistol Upper

Old Steel Historical Firearms LLCLittleton, CO

SOLD

NIB Troy Industries 2-Piece Drop-In Mid-Length Quad Rail AR15 Handguard: Up for auction is a new in box Troy Industries 2-piece drop-in quad rail handguard designed for mid-length AR-15 platforms. Troy Industries is a well-known manufacturer of professional-grade AR compon

2026

NIB Troy Industries 2-Piece Drop-In Mid-Length Quad Rail AR15 Handguard

Old Steel Historical Firearms LLCLittleton, CO

SOLD

Lot of 2 Pistol Braces MP5 Style Brace & AR15 Buffer Tube Brace: This lot includes two pistol braces designed for popular firearm platforms, featuring one MP5-style brace and one brace configured for AR15 buffer tube applications. These braces are widely sought aft

2026

Lot of 2 Pistol Braces MP5 Style Brace & AR15 Buffer Tube Brace

Old Steel Historical Firearms LLCLittleton, CO

SOLD

Lot of 6 M4 RAS Quad Rail Lower Handguards Includes Knights Armament Components: This lot includes six M4 RAS lower quad rail handguards, with several examples manufactured by Knights Armament. Designed for M4 and M4A1-style rifle configurations, these rail sections provide the cl

2026

Lot of 6 M4 RAS Quad Rail Lower Handguards Includes Knights Armament Components

Old Steel Historical Firearms LLCLittleton, CO

SOLD

Knights Armament 5-Slot M-LOK to Picatinny Rail Segment AR15 (New in Bag): This Knights Armament 5-slot M-LOK to Picatinny rail segment is a new in bag accessory designed for AR15 and compatible M-LOK handguard systems. It provides a secure and reliable mounting interface fo

2026

Knights Armament 5-Slot M-LOK to Picatinny Rail Segment AR15 (New in Bag)

Old Steel Historical Firearms LLCLittleton, CO

SOLD

Knights Armament Ribbed Rail Cover Kit AR15 Picatinny Rail Covers: This Knights Armament ribbed rail cover kit includes a set of Picatinny rail covers designed for AR15 and compatible quad-rail handguard systems. Featuring the classic ribbed texture, these covers pro

2026

Knights Armament Ribbed Rail Cover Kit AR15 Picatinny Rail Covers

Old Steel Historical Firearms LLCLittleton, CO

View:

24

Rifles Auctions

Antique Mississippi Rifle Model 1841 dated 1849 Remington's Herkimer, NY Smooth Bore Civil War Era

Vintage Iron Wagon or Implement Wheel Spoke Design P01618 IH

MCM Interlocking Ring base / Marble Top Console Table

7/2026 Estate Auction & Civil War Era Rifles

Starts on:

Canajoharie, NY, US

A Pair of Winchester Model 94 Buffalo Bill Commemorative Lever Action Rifle and Carbine .30-30 with

Colt Government Model 1911 Semi-Automatic Pistol .38 Super with 5 Inch Barrel

Smith & Wesson Model 29-2 Double-Action Revolver .44 Magnum with 8-3/8 Inch Barrel

NO RESERVE Gun Collectors Dream Auction Day 1

Brand Used Works

Starts on:

Henderson, TX, US

Ruger Mini-14 Semi-Automatic Rifle .223 with 18.5 Inch Barrel

Smith & Wesson Model 24-3 Double Action Revolver .44 S.&W. Special with 3 Inch Barrel

Colt Government Model Semi-Automatic Pistol .38 Super with 5 Inch Barrel

NO RESERVE Gun Collectors Dream Auction Day 2

Brand Used Works

Starts on:

Henderson, TX, US

TOP