Great West Gunsmithing makes a 3 bushing set of reduced diameter gas bushings. Really a great product. I bought bushings from both Accuracy Systems Inc, and Great West Gunsmithing.
http://www.greatwestgunsmithing.com/mini14.htm
I first bought from Accuracy Systems Inc. They market there bushings as for the Mini-14 and Mini-30. They are not. They will only fit the older Mini-14 Ranch Rifles. Quality was good, but a little rough. I found out that they were useless for my Mini-30 after I bought them.
I next bought from Great West Gunsmithing. Doc was very helpful, and I only required a couple e-mail contacts with him to get all of the information I needed for the order. He was always very prompt in his reply's. The quality of the bushings from Great West Gunsmithing was outstanding.
I like the idea of the bushings better than the adjustable gas block for standard uses. The only reason I can see between an adjustable gas block is if you plan on adjusting between subsonic ammunition, high velocity ammunition, turning off auto-reloading, and opening the gas flow for a really dirty weapon.
Great West Gunsmithing is currently in the process of moving to a new location, so it could be a while before his bushings are availible again, but they are worth the wait.
I installed the medium bushing on my Mini-30. High velocity ammunition ejects about 5 feet away, but I occassionally have cycling issues with standard velocity ammunition. I will change to the large bushing the next time I am in the states. As my Mini-30 wears in, I might eventually need to move back to the medium bushing.
Charlie
