Free Shipping On Orders Over $50!

1 (855) 297-7000

You have no items in your shopping cart.

Product was successfully added to your shopping cart.

Williams™ 5D-SMLE Receiver Peep Sight British Lee Enfield Nos. 1, 4, and 5 - 1420

90 2 100 0

Quick Overview

Williams™ 5D-SMLE Receiver Peep Sight 1420 For the Lee Enfield Noz. 1, 4 and 5. The Williams™ 5D-SMLE Peep Sight 1420 allows for highly accurate open sight shooting. 

Availability: In stock



Williams™ 5D-SMLE Receiver Peep Sight

The Williams™ 1420 5D-SMLE  Receiver Peep Sight is specifically designed to fit the Lee Enfield Nos. 1, 4 and 5. Williams™ 5D-SMLE Receiver Peep Sights offer shooters unmatched open sight visibility at longer distances than standard fixed open sights. The Williams™ 5D-SMLE Receiver Peep Sight is compatible with a front fiber optic fire sight. Williams™ Fire Sights gather ambient light and reflect it back to your eye, enabling faster target acquisition. Williams™ Sights do not use artificial light sources to create their sight visibility, making them legal to use in states that do not allow artificial light sources on your firearm while hunting. 

This Williams™ 5D-SMLE Sight Set 1420 fits the following firearms:

  • Enfield #1 Mark I
  • Enfield #1 Mark II
  • Enfield #1 Mark III
  • Enfield #1 Mark IV
  • Enfield #1 Mark V
  • Enfield #4 Mark I
  • Enfield #4 Mark II
  • Enfield #4 Mark III
  • Enfield #4 Mark IV
  • Enfield #4 Mark V

The Williams™ Fire Sight Set 1420 DOES NOT fit any other firearms than those listed above.

  1. This rear aperature sight ... review by Ron on 6/26/2017

    This rear aperature sight has significantly improved the Mark I Lee-Enfield on which it is mounted. The sight is mounted on the receiver bridge, very low to the bore. The aperature size is just right, smaller than a \'ghost ring\' but large enough to rapidly aquire a sight picture when shouldering the rifle. I would recommend it over the open battle shights of the Mark I. In addition to these improvements the sight radius was increased from a mere 18 inches to 30 1/2 inches, a 69% improvement.

  2. A much needed and searched for item. review by Clayton on 6/26/2017

    I have a Golden State Arms, Jungle Carbine that was built from an SMLE III. Golden Sate removed the rear sight and cut the bridge to install their own custom made rear sight which has been missing for years. I looked for a long time for a rear sight without success and the custom options were not cost effective considering the worth of the rifle. I was ecstatic when I saw Ochocos introduce this item. I gave it only 4 stars because I have not had it installed yet. I will update this review once I have.

Write Your Own Review

How do you rate this product? *

  1 star 2 stars 3 stars 4 stars 5 stars


Most items ship within 1 business day. We ship orders from our warehouse Monday through Friday. If an in-stock order is placed on Friday evening, Saturday or Sunday, it may not ship out until the following Monday. We rush-ship directly to customer's doors throughout the United States. Depending on the shipping method and area of the country, orders can arrive between 1 and 7 business days. 


Standard Ground FREE over $50 4-7 Business Days
Three-Day Variable Cost 3 Business Days
Two-Day Variable Cost 2 Business Days
Overnight Variable Cost 1 Business Day

First Class $3.00 to $5.00 1-5 Business Days
Priority Mail Variable Cost 2-3 Business Days


If you are not 100% satisfied with your order, you can return it to us for a refund or exchange within 30 days of delivery. We accept returns on all products that have not been used or registered, no questions asked. All returns are subject to a 5% Re-Stocking Fee. To make returning an item easy, contact our friendly customer service representatives toll free 1-855-297-7000.

warning-iconWARNING: This product can expose you to Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to -