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Posted: 3/29/2010 5:42:04 PM EDT
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Got home from the range today and found a bunch of plastic pieces floating around inside.
looked into it an see that its pieces of the buffer is this normal wear for 1500-2000 rounds? 16" carbine standard spring and buffer. If this isnt normal whats usually the cause? if this is normal , is there a better buffer and or buffer and spring out there?...up till now I figured the run of the mill buffer was just fine. 
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That is not normal at all.
Your buffer is being battered. Check the action spring length, which should be 10 1/16" - 11 1/4". The buffer should be replaced as well. This type of wear can be indicative of an over-gassed system from an over-sized gas port. In addition to a new action spring, you may want to pick up a heavier buffer (H2, ST-T2, H3, etc). |
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What Eric said....plus try a known quality buffer such as CMT,BCM,LMT etc..
Depending on the brand of upper I'd suspect you will want an H2 buffer for 5.56 NATO ammo. That said Ive had spotty luck with the cool colored buffers with cheap/soft bodies. Buy known quality...not perty. |
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Quoted:
Look at what is happening to the pin hole and roll pin !  Yeap,thats what Ive seen happen with some cheaper soft aluminum bodied buffers.Its amazing that the polymer bumper can actually provide enough force on the roll pin to egg and displace the aluminum material without shearing the polymer bumper.The actual weight and internal material of some of these buffers is questionable at best. Ive also seen the cheap buffers wear excessively on the face from carrier contact. To further add to the topic.... If the rifle is overgassed enough to pound a quality buffer to dust then I think there would be some other indicators as well.If that is the case its time to return the upper to the manufacturer or replace the barrel.No bandaids will fix the issue. As Eric pointed out the action spring probably needs to be inspected at the very least. If it were me I'd replace the buffer and action spring with known quality and start over.Ive seen some real questionable action springs in the last couple years,with an extremely short service life. |
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