Object Title

Centrefire automatic rifle - Experimental SA80 Enfield Weapon System Individual Weapon (EWS IW) 0 series

Centrefire automatic rifle - Experimental SA80 Enfield Weapon System Individual Weapon (EWS IW) 0 series

Date

about 1975

Object Number

PR.5340

Provenance

Gifted with the Pattern Room by the Ministry of Defence, August 2005

Physical Description

IW (Individual Weapon) configuration. Part of what Raw calls the ‘0 series’, preproduction examples of the XL60 series. These were produced from 1975 to 1976 and represent the second evolutionary step toward SA80. The improvements included, revised reinforced receiver architecture, ‘rock in’ magazines with an L-shaped catch relocated to the left side, intended to be operated by the off-hand thumb, three round burst feature deleted, selector switch replaced with a rotary design marked ‘R’ and ‘A’, similar to the SA80 design, existing annular ring on flash suppressor modified for actual grenade launching, rear sling loop on top of the receiver, properly moulded and textured polymer furniture including a cheekpiece glued onto the upper receiver, provision for emergency iron sights; a folding front and a removable rear (the former being kept folded when not in use and the latter stored in a new compartment in the grip). The bolt carrier is of a revised pattern with flat sides and the reciprocating anti-bounce mass previously incorporated into the 00 series LSW is now present in both IW and LSW. In this example, machined lightening cuts are present in both left and right hand sides, and the component is marked 'FOR TRIALS USE ONLY'. It also bears a revised drawing number.

Techniques

Machining, Phosphating, Casting, Stamping, Painting

Materials

Dimensions

Bolt carrier groupWeight0.35kg
Bolt carrier groupWeight0.772lb
GunWeight3.1kg
GunWeight6.83lb
Barrellength21in.
Barrellength534mm

Firearms/Artillery

Serial Number R01

Calibre

4.85 mm

Inscriptions and Marks

Selector markings
'S' and 'F' for 'Safe' and 'Fire'
Safety catch
Casting
Calibre mark
4.85
Left side receiver
Stamping
Proof mark
Enfield proof (crown over RSAF)
Bolt carrier
Etching
Serial number
R 01
Left side upper and lower receivers
stamping

Associations