Description
Specna Arms SA-F20 FLEX™ ETU™ Rifle in Black
Specna Arms introduces the FLEX™ series of airsoft replicas, designed for beginner players by combining an attractive price with innovative features and high-quality materials. Developed in collaboration with Double Eagle, a veteran in the airsoft market, the SA-F20 stands out for its exceptional fit and finish, with no play between the lower and upper parts of the body.
The SA-F20 features a reinforced nylon body and front, reducing weight and making it ideal for dynamic CQB games. The nylon fiber reinforcement also enhances durability compared to other polymer constructions.
Features:
Quick Spring Replacement System: Allows for quick and efficient power adjustment without needing a workshop or specialized tools.
SA ETU 2 Circuit: Factory-installed, offering settings for series firing mode (1 to 5 shots in auto mode), binary trigger, and trigger sensitivity (3 levels). It also protects the motor from current overloads and alerts for high or low battery voltage. An inactivity control mode shuts down the circuit after an hour of inactivity, requiring a battery reconnection to restart.
Specifications:
Internal Barrel: 223mm long, 6.03mm diameter.
Weight: Just over 2 kg.
Magazine Release: Enlarged for ease of use.
Adjustable Breech: Customizable length.
Fire Mode Switch: Oblique design.
Handguard: Stylish and practical 7-inch M-Lok.
Suppressor: 14 mm CCW thread.
Gearbox: Version V2 with quick-change spring system.
Hop-Up: Rotary unit for precise adjustment.
Internal Components: Steel gears and 8 mm diameter bearings.
Package Includes:
Cleaning rod
Instruction manual
Replica
2 x mid-cap magazines
Spare parts (Deans Connectors)
Allen key
Assembly key
Iron sights
Small Tamiya to Deans adapter
Suppressor
Package Excludes:
Battery
Charger
Details:
Producer: Specna Arms
Battery Included: No
Bearings Diameter: 8 mm
Blow Back: No
Color: Black
Dimensions: Height: 20 cm, Length: 70.80 cm, Width: 3.50 cm
Weight: 2115 g
Power Supply: Electric
Materials: Nylon and Steel
Muzzle Velocity: 390 FPS
Fire Mode: Semi-auto
Gearbox Version: V2
Hop-Up: Yes
Inner Barrel Length: 223 mm
Magazine Capacity: 175 rounds
MOSFET/ETU: Yes
Specna Arms Line: FLEX F20+
Quick Spring Change System: Yes
Type of Plug: DEANS / T-connect
Manufacturer's Recommendation: Use with Li-Po/Li-Ion batteries only.
The Specna Arms SA-F21 is an excellent choice for new players seeking a reliable, affordable, and versatile airsoft replica.
Product Reviews
Delivery & Returns
Delivery Information
Affordable Shipping – Starting from Just £2.50
Our delivery prices begin at only £2.50 for UK mainland orders, with free standard delivery available on all orders over £100*. To quickly find out the exact shipping cost for your items, simply add everything to your basket. In the basket, you'll see a link under the subtotal titled "Estimate Shipping & Tax"—click this, enter your delivery details, and you’ll get a full quote including whether you qualify for free shipping.
Free Shipping Offers
- UK Mainland: Free on orders over £100*
- Northern Ireland, Republic of Ireland, Scottish Highlands & Islands, and Isle of Man: Free on orders over £100*
- Channel Islands: Unfortunately, we do not offer free shipping to this region
*Free shipping is a 5 working day service. For example, an order placed on Monday would typically arrive the following Monday.
Mainland UK Delivery Options
- Royal Mail: From £2.50 (2 working days, price based on weight)
- Economy Delivery: £4.95 flat rate (2–4 working days)
- Express Delivery: £6.95 flat rate (1–2 working days)
Working days exclude Saturdays, Sundays, and public holidays. Need your order on a Saturday? We can arrange this for £20—please contact us directly after placing your order to pay the balance.
Delivery Prices – Outside Mainland UK
- Northern Ireland: From £5.95
- Scottish Highlands & Islands: From £5.95
- Isle of Man: From £5.95
- Republic of Ireland: £6.95 flat rate (any size order)
- Channel Islands: £7.95 flat rate (any size order)
We strive to keep our delivery charges as fair and straightforward as possible, with clear options to suit all needs and budgets.
