Weekend Photo: Inside A Dagenham Gun

    Rufus writes:

    This is a picture of my original Armalite AR-180 manufactured in England by Sterling.  I saw it in a shop next to one of the new ones produced by the current Armalite (which is the same company in name only) with the polymer lower.  I fell in love with the spot-welded, industrial ugliness of the original.

    The rifle is popped open for field stripping and the moving parts can be seen above.  They’re quite similar to an AR-15, except that the firing pin is held in by a pin instead of a cotter pin.  Additionally, the cam pin rides on the side of the bolt carrier opposite the ejection port instead of on top of the carrier in the AR-15.  A similar arrangement is used in the G-36 and SCAR.  The firing pin is spring-loaded.
    You can see a bit of a gap between the upper and lower handguards because the return spring guide rods are responsible for holding on to the upper handguard!
    Interesting rifles to be sure.”
    The American AR-180 was the first alternative to the AR-15 among .223/5.56 rifles offered on the civilian market, and one of the first serious competitors to the M16 in the military sector. The original rifles are now uncommon finds in gun stores, not in the least because their owners invariably have a special keenness for them.