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Posted: 1/23/2004 6:06:47 PM EDT
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I just completed building my first complete lower (RRA everything). I had no problems except that I put in the pivot pin detent before the spring. Oops. (An xmas ornament hook fished it out fine.) One question though: there seems to be a bit of rotational (twisting) play in the A2 buttstock and the receiver. Maybe 1/8 or 1/16 of an inch. Barely felt, but heard. Is this normal??? Thanks guys (and gals). Jerry |
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Did you install the receiver extension/buffer tube? Be sure you've torqued it correctly. Check the 'nut' on the end of the extension and look for any raised areas. The nut should be flat. It's common to bung up the nut putting on the extension if you use an adjustable wrench. If the A2 spacer rocks back and forth on the nut file off any raised areas. |
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The buffer tube nut was torqued using a 5/8 inch open end wrench as suggested in another post. The spacer has the concave side facing the front of the stock. Is this the correct orientation? Edited to say: It must be. The stock won't go on with it facing the other way. |
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Quoted: Yep, that's the way the spacer is used... check the end of the buffer and confirm that the nut area that mates up against the spacer is flat. If it isn't the spacer will rock and can allow the stock to move... You're right. The "nut" on the buffer tube is too large for the concave section of the plastic spacer. All I have is an angle grinder, so I suppose it's off to Dad's house tomorrow to Dremel away the plastic a bit. Many thanks, Jerry |
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FINAL UPDATE: I ground out about 1/10 inch from the concave part of the spacer using a "fine detailing" bit on low speed. (The high & med speeds melted the plastic instead of grinding it.) The spacer can now fit on the end of the buffer tube with no wobble. The buttstock is now tight with no play at all. |
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