Vector Optics Lee Enfield 303 No4 Mk1, 2 and 5 Weaver Picatinny Rail Mount
- Made of Steel, 21mm Picatinny Rail
- British Lee Enfield 303 No.4 Mk1, 2 and No 5 Mk1
Upgrade your classic Lee Enfield .303 No4 with modern optics mounting. This Picatinny rail mount is built specifically for the No4 Enfield receiver and gives you a solid foundation for scopes, red dots, or other optics — all while respecting the rifle’s heritage.
This heavy-duty steel reproduction mount ensures robust support for your firearm.
With a sleek black finish and an overall length of 127mm (5.0in), it seamlessly integrates with your rifle.
The 21mm Picatinny rail offers versatile accessory attachment options, while its net weight of 205g (7.2oz) ensures balance and stability.
- Overall Length: 127mm (5.0in)
- 21mm weaver/picatinny rail
- Weight (net): 205g (7.2oz)
- Material: 45# steel
- Finish: Black
- Heavy duty
- Re-production
- Made of Steel, 21mm Picatinny Rail
- British Lee Enfield 303 No.4 Mk1, 2 and No 5 Mk1
- Vector Optics Lee Enfield 303 Picatinny Rail Mount
Q1: Will this mount fit my Enfield model?
It’s designed for the .303 Lee Enfield No4 receiver. Mk models 1, 2 and 5.
Q2: Can I mount any scopes or accessories on it?
Yes — the built-in Picatinny rail supports any accessory or rings compatible with Weaver/ Picatinny systems (scopes, red dots, lasers, etc.).
Q3: Does it interfere with bolt or magazine operation?
No — precision machining ensures the mount doesn’t obstruct bolt cycling, magazine insertion, or ejection.
Q4: Will it hold zero under recoil?
Yes — when installed and torqued properly, this rail mount offers stable support. Use matched rings and ensure proper mounting practices to maintain alignment.
Q5: How much height does the rail add?
The rail adds just enough height to clear scope bodies and rings while keeping your optic as close to the bore axis as possible. It’s not an excessive riser.
Tactical Scope Shipping Policy
Our aim is to ensure that your order arrives with you as soon as possible and in the safest, most cost-effective means.
Shipping charges may be subject to additional surcharges if out of area or over weight restrictions.
DPD SHIPMENTS REQUIRE THE CUSTOMER TO SHOW A PIN CODE ON DELIVERY – READ MORE: HERE
Note: The above DPD link is to our group partner site Optics Warehouse, with whom we share logistics and stock. Link opens in a new window.
Couriers
We use DPD, Royal Mail, TNT, and UPS courier services for all our UK and international orders. Once your order is dispatched, you will receive an email with your unique tracking number.
In-Store Items
These are items we have in stock and aim to dispatch within 1–2 working days. During busy periods, this may be delayed slightly. If you'd prefer to collect your item in person, please contact us in advance to arrange. Collection orders must be paid for beforehand.
Pre-Order Items
Pre-order items are typically out-of-stock or in limited supply. Purchasing a pre-order secures your item, and it will be dispatched within 24 hours of restock where possible. Check the product page for estimated restock dates. These dates may change, so staying in touch is advised.
International Delivery & Taxes
If your shipping address is outside the UK, you may incur import duties or taxes upon arrival in your country. These charges are your responsibility. Customs regulations vary, so please check with your local customs office. Some packages may be opened for inspection.
Need Help?
If you need assistance, call us at +44 (0)1803 611895 (Optics Warehouse) or email [email protected].
DPD Shipments & PIN Code Delivery
We have now introduced DPD Pin Code verification for all orders shipped via DPD. You will receive a PIN via email and text.
A valid email and mobile number must be provided at checkout. Emails will come from Riviera House 3PL. Please check spam/junk folders if not received.
Failure to present your PIN to the delivery driver will result in a failed delivery and rescheduling may be required.