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Spring for MARUI SRE in BURNISHED STEEL wire with IRREGULAR coils - FPS

13.90

Tax included Product made to order generally delivered in 7/10 working days.

FPS specific spring for Tokyo Marui Next Generation Recoil Shock (SRE) replicas. Calibrated in collaboration with Terni Softair. Made of EN10270/2 (Si-Cr) carbon steel, burnished, pre-tempered and heat treated. Variable pitch coils and ground ends. 100% Made in Italy.

Size Guide

This is an approximate conversion table to help you find your size. If you have already purchased an item from our brand, we recommend you select the same size indicated on its label.

Men's Sizes

International	XS	S	M	L	XL	XXL	XXXL
Europe	32	34	36	38	40	42	44
US	0	2	4	6	8	10	12
Chest Circumference (inches)	33-35"	36-38"	39-41"	42-44"	45-47"	48-50"	51-53"
Chest Circumference (cm)	84-89	91-97	98-104	107-112	114-119	122-127	129-134
Waist Circumference (inches)	28"	30"	32"	34"	36"	38"	40"
Waist circumference (cm)	71	76	81	86	91.5	96.5	101.5

LOWA FOOTWEAR SIZE CHART

SIZE SELECTION:

THE SIZES IN THE DROP-DOWN MENU ARE UK SIZES (ENGLISH)

conversion chart: UK size - (IT size) - size in mm

Size 6.5 (40) 257mm

Size 7 (40 3/4) 262mm

Size 7.5 (41.5) 266mm

Size 8 (42) 270mm

Size 8.5 (42.5) 274mm

Size 9 (43 1/4) 278mm

Size 9.5 (44) 283mm

Size 10 (44.5) 287mm

Size 10.5 (45) 291mm

Size 11 (46) 295mm

Size 11.5 (46.5) 300mm

Size 12 (47) 304mm

Size 12.5 (48) 308mm

Size 13 (48.5) 312mm

NEED ADVICE ON CHOOSING A SIZE?

Take one of your sneakers and look at the size in mm or cm, look at the diagram above to see what it corresponds to and order your size!

e.g., your sneaker is 27.2 cm long? Great, the closest and most correct size will be: "TG 8.5 (42.5) 274mm", in the purchase menu select size 8.5UK!

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Durezza Molla

M 95
M 100
M 105

Quantity

On request!

Description
Product Details

This FPS spring is a high-quality component, 100% Made in Italy, designed and specifically calibrated for Tokyo Marui Next Generation Recoil Shock (SRE) airsoft replicas, in collaboration with Daniele Cimadoro of Terni Softair and leading companies in the sector. Springs for NGRS/SRE have specific characteristics to adapt to the Recoil Shock mechanism.

Materials and Construction:

Material: Burnished and pre-tempered carbon steel wire with added silicon and chromium (EN10270 / 2).
Heat Treatment: Stabilized in an oven at 400°C for 30 minutes after forming to optimize durability.
Variable Pitch Design: Features variable pitch coils for smooth compression.
Ground Ends: For a flat support and optimal performance.

Calibration and Performance:

Specifically calibrated for the Marui SRE mechanism.
Bearings: The calibration does not take into account the thickness added by bearings (an increase of approximately 2.5 m/s per bearing is estimated).

Recommendation: It is recommended to use the spring in combination with bearing spring guides and piston heads to maximize performance and durability.

Technical Specifications:

Type: AEG Spring (Specific for Marui SRE/NGRS)
Compatibility: Tokyo Marui Next Generation Recoil Shock (SRE)
Material: EN10270 / 2 (Si-Cr) burnished and pre-tempered carbon steel
Design: Variable pitch, ground ends
Brand: FPS
Production: 100% Made in Italy

Advantages:

Made with very high quality steel and specific treatments
Variable pitch design and ground ends
Specifically calibrated for the Marui SRE/NGRS mechanism
100% Made in Italy
100% Marui Compatible

IMPORTANT - WARNING:

The power specifications (e.g. m/s) and dimensions of this spring are missing. It is essential to know the nominal power to choose the right spring and to respect the legal limits.
Always check the actual power of the replica with a chronograph after installation to ensure that you remain within the legal limits (e.g. 1 Joule in Italy) and the limits allowed by the playing field.