The Firing Line Forums - View Single Post - USGI 20rd AR-15 mag jamming on last round -need help

Spirex288 · January 12, 2000, 12:42 AM

I just picked a used USGI Adventure Line 20rd mag at a local gunshow. This mag has an alloy follower.
Using American Eagle 55gr FMJ loads, the last round will jam against the bolt and locking lug on the lower left side.
It appears that the follower can move around not positioning the last round to properly feed. Is this a mag spring issue or do I need a new follower that has a tighter fit inside the mag body?

January 12, 2000, 12:42 AM	#1
Spirex288 Senior Member Join Date: August 11, 1999 Location: Houston, TX Posts: 238	I just picked a used USGI Adventure Line 20rd mag at a local gunshow. This mag has an alloy follower. Using American Eagle 55gr FMJ loads, the last round will jam against the bolt and locking lug on the lower left side. It appears that the follower can move around not positioning the last round to properly feed. Is this a mag spring issue or do I need a new follower that has a tighter fit inside the mag body?