AR Sponsor
Posted: 6/24/2010 9:09:51 PM EDT
| Any tips on getting the old ones off and the new McFarland ones on? Sure I could booger up the first few and learn that way.Any tips to avoid that would be appreciated. |
| Just slip the rings on one at a time from the rear of the bolt, if you get one side of the ring on (in the gas ring groove on the bolt) you can push around the rear of the bolt to get the rest of the ring on, they shouldn't be too difficulty to push on. Don't try to open up or expand the ring in any way casue this will cause damage to the ring. Once all three rings are on, rotate each ring individually so that the cuts in each ring are offset from eachother. |
|
Quoted:
If you've ever installed rings on a car piston without the expanding tool, you have the basic concept to install gas rings. The hardest part is starting the removal of the old ones. I use a dental pick to get the ends out of the groove. We use a dental pick too at work to get them off.Getting them on is even easier. |
|
For those that missed it, or don't know what they are, McFarland rings are a single spiral. Not three separate rings like the standard.
To get the old ones off, unless you want to keep them as a backup, just yank them off with a pair of needlenose pliers. To put the McFarland on, start with the end and push the rest of the ring over the edge and into the groove. |
|
Quoted:
For those that missed it, or don't know what they are, McFarland rings are a single spiral. Not three separate rings like the standard. To get the old ones off, unless you want to keep them as a backup, just yank them off with a pair of needlenose pliers. To put the McFarland on, start with the end and push the rest of the ring over the edge and into the groove. Thank you |
| You know, I never before thought of it this way, but the bolt tail is really a gas piston. Being a part of the bolt is an incredibly efficient system, with the lightweight gas transfer tube instead of a heavier operating rod. So, whether a 'gas piston' or a D.I. system, the gas piston is just in a different place. I like it being inside the bolt carrier. |
|
Quoted:
I've been reading about McFarland rings for a while, and it seem like about 66% of web posters say they're great, while 33% say they're crap that'll make your gun function worse or cause premature wear. No idea what to believe. I like mine. They were initially a bit tighter than the set of somewhat worn-in GI rings, but they wore in just fine. The thing I like about them isn't that they're "gapless" (don't think that makes any difference) but that one continuous piece means more long-term durability. To remove the GI rings, take a small flatblade screwdriver, pry up one end of the ring 'till it's just clear of the bolt tail, and then coax it backwards off the bolt over the skinny part. Repeat for the other two. To install the McFarland, use the same screwdriver blade to work your way under the end closest to the boltface, depending on how you're holding the ring, stretch it out enough to fit into the retaining groove, and "wind" the rest of the ring into the groove. Removal/installation for either type is the reverse. |
AR Sponsor