Osuma 40 mm 4 Scope Ring Mounts, Picatinny
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Osuma 40 mm 4 Scope Ring Mounts, Picatinny

As low as: £299.47
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Osuma 40 mm 4 Scope Ring Mounts, Picatinny Product description

  1. Enhanced Stability: This mount features an innovative 4-ring configuration, significantly improving stability and rigidity over traditional two-ring systems. By distributing the clamping force across four points, it effectively minimises scope movement, even when subjected to the strong recoil of large-calibre firearms, ensuring your zero remains consistently precise shot after shot. This design is paramount for maintaining accuracy in high-stress situations.

  2. Precision Engineering & Materials: Crafted from high-grade 7075-T6 aviation-grade aluminium, each of the four rings is meticulously CNC-machined to achieve exceptionally tight tolerances of ±0.01 mm. This manufacturing precision prevents internal stresses on the scope tube, safeguarding its integrity and enhancing optical performance. The hard-anodised black finish adds superior resistance against abrasions and corrosion, making it a reliable choice for any environment.

  3. Secure & Protective Mounting: Designed for an unyielding attachment to any Picatinny rail, the mount incorporates robust clamping mechanisms for zero slippage. Integral polymer inserts within each ring act as a protective layer, shielding your valuable scope from unsightly marks and scratches, while simultaneously providing a secure, non-slip grip that holds your optic firmly in place without the need for excessive overtightening.

  4. Optimised for Performance: The Osuma 40 mm mounts are built to withstand the rigours of precision shooting. Their design includes a central recoil stopper that snugly engages the Picatinny rail, offering unparalleled resistance to recoil-induced shift. This feature, combined with the superior stability of the four-ring setup, makes them an excellent choice for hunters and tactical shooters who require their equipment to deliver peak performance and reliability under the most demanding conditions.

ABOUT THE OSUMA 40 MM 4 SCOPE RING MOUNTS, PICATINNY

The Osuma 40 mm 4 Scope Ring Mounts represent a significant advancement in scope mounting technology, setting them apart from conventional two-ring systems. Their unique 4-ring configuration provides unparalleled stability and rigidity, crucial for precision applications where even the slightest scope movement can impact accuracy. Unlike standard mounts, these distribute pressure more evenly across the scope tube, greatly enhancing zero retention under the powerful recoil of large-calibre firearms. Constructed from premium 7075-T6 aviation-grade aluminium and meticulously CNC-machined, these mounts guarantee perfect alignment and exceptional durability. This robust material ensures the mount can withstand extreme environmental conditions and rigorous use, making it ideal for discerning hunters and tactical users who demand unwavering reliability. The integrated polymer inserts safeguard your scope's finish, while the hard-anodised black finish provides corrosion resistance. Designed to absorb shocks and vibrations, these mounts ensure your optic remains precisely zeroed, making them an indispensable tool for long-range precision shooters and agile hunters navigating challenging terrains.

ABOUT OSUMA

Osuma is a highly respected European manufacturer specialising in premium quality firearm accessories, particularly known for its innovative mounting solutions. Founded on principles of precision engineering and robust functionality, Osuma products are crafted to meet the stringent demands of professional shooters and passionate enthusiasts across Europe. The brand's philosophy centres on leveraging advanced materials and cutting-edge manufacturing techniques to produce accessories that significantly enhance the shooting experience through unwavering stability and intelligent design. Osuma is celebrated for its commitment to delivering superior reliability and performance, establishing itself as a trusted name in the European firearms community for its consistent quality and innovative approaches to scope mounting.

MAIN FEATURES

  • Tube Diameter: 40 mm, designed to securely embrace larger rifle scopes.

  • Mounting Standard: Compatible with Picatinny rails, ensuring broad adaptability with a variety of firearms.

  • Material: Constructed from high-strength 7075-T6 aviation-grade aluminium, offering an exceptional strength-to-weight ratio for robust yet lightweight performance.

  • Manufacturing Process: Each ring is CNC-machined to meticulous tolerances (±0.01 mm) for perfect alignment and enhanced optical performance.

  • Recoil Stopper: Features a central recoil lug that locks firmly against the rail shoulders, preventing movement even under heavy recoil. Please note: This design makes them incompatible with rifles featuring two-piece Picatinny rails (e.g., Merkel RX Helix, Sabatti Rover, Steel Action).

  • Number of Rings: Utilises a 4-ring design for superior stability and rigidity, distributing clamping force more evenly than standard two-ring mounts.

  • Finish: Hard-anodized black finish provides a sleek appearance, excellent corrosion resistance, and a non-reflective surface.

  • Mounting Protection: Integrated polymer inserts within the rings safeguard the scope's finish from scratching and marring, while ensuring a non-slip grip.

  • Weight: Approximately 200 g, combining robust construction with manageable weight for field use.

  • Torque Specifications: Ring screws should be tightened to 1.7-2.8 Nm, and rail clamping screws to 2.3-5 Nm for optimal security and to prevent scope tube damage.

  • Intended Use: Ideal for demanding applications such as long-range precision shooting, tactical operations, and rigorous hunting scenarios where uncompromising stability is crucial.

WARRANTY

This product is covered by a 2-year global warranty that includes defects in materials and manufacturing under normal use.

IN THE BOX

  • Osuma 40 mm 4 Scope Ring Mounts (4 pieces)

  • Set of mounting screws

  • Torx key for installation

  • User manual and warranty information

General properties

Manufacturer Osuma
Mount series Osuma Tactical Mounts
Made in Finland
Warranty 2 years
SKU OS409c

Physical properties

Extension (KR) KR 0.0 mm
Adjustable windage No
Scope / Sight type 40 mm
Color Black
Material Aluminium

Characteristics

Suitable for Compatibility Above 40 mm
Suitable for Compatibility Below
Picatinny Rail, Accuracy International AX308, Accuracy International AX50, Accuracy International AXMC, Accuracy International AT308, Anschutz 1771, Baikal 121 Lis, Baikal 145 Los, Baikal 141 Sobol, Baikal 161 Manul, Beretta ARX 100, Beretta ARX 160, Beretta ARX 200, Beretta Rx4 Storm, Beretta Cx4 Storm, Beretta BRX1 (Picatinny), CZ 512 Tactical, CZ 557 Varmint, CZ 557 Range Rifle, CZ 600 Trail, FN Browning BAR MK3 DBM, Haenel RS8, Haenel RS9, Heckler & Koch G36, Kimber Advanced Tactical SOC II, McMillan M88, Mossberg 100 ATR (Picatinny), Mossberg MVP (Picatinny), Mossberg Patriot (Picatinny), Ruger 10/22 (Picatinny), Ruger American Rifle (Picatinny), Ruger American Rimfire (Picatinny), Ruger PC Carbine, Ruger Precision Rifle (picatinny), Ruger Precision Rimfire, Ruger Scout, Sabatti Urban Sniper, Sabatti Tactical EVO US, Sabatti ST-18, Sabatti STR, Sabatti pre-2021 STR Sport, Sabatti post-2021 STR Sport, Sako TRG 22/42 A1, Sako TRG M10, Savage 110 Elite Precision, Savage 110 Magpul Hunter, Savage Model 110 Precision, Savage Model 64 Precision, Savage A17 (Picatinny), Savage A22 (Picatinny) , Savage Axis I (Picatinny), Savage Axis II (Picatinny), Savage Impulse, Savage Impulse Elite Precision, Savage 220 Slug , Savage 212 Slug , Schultz & Larsen Tactical, Steyr AUG, Steyr Elite, Steyr Elite 08, Steyr HS .50 M1, Steyr Pro Varmint, Steyr Mannlicher SSG 04, Steyr Mannlicher SSG 08, Steyr Mannlicher SSG M1, Steyr Mannlicher Pro Hunter II, Steyr Mannlicher THB, Strasser RS 14 Evolution, Tikka T3x Tac A1, Voere S16, Zastava M07, Zastava M93 Black Arrow

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