The 340E below has no serial number and is chambered in 222 Rem
The rifle is equipped with a recessed bolt head rather than the spring clip style of extractor/ ejector. The bolt handle is knurled and nicely swept back. The barrel length is 22” and comes with original iron sights.
It is unknown if this stock is original to the rifle but has impressed checking and white line spacer with black plastic buttplate and pistol grip cap.
340E Magazine Patent
340E trigger guard - flat profile