Buffer and Buffer springs

[IRS-form-4029]

I have two AR rifles both with 16" barrels, one with an A1 fixed stock and the other with an fixed A2 stock: What is the correct Buffer and Buffer spring to use, currently the spent casting are being thrown at 1pm, range experts keep telling me to use heavy weight Carbine Buffers but I don't want to spend the money because I don't believe this is to be true any thoughts or advise?

[penguin0123]

Rifle buffer tube should uses rifle spring and rifle buffer. Are you using those now?

If it is an overgas problem, it is better to fix it with an adjustable gas block then with a buffer.

range experts keep telling me to use heavy weight Carbine Buffers

lol, range experts strike again. If you really want to use carbine buffer in rifle tube, use a spacer: http://www.brownells.com/rifle-parts...89-100407.aspx

[SocomM4]

Who made your bolt and barrel?

[FMJBT]

Both A1 and A2 stocks use the same rifle length buffer system. Swapping to a carbine buffer would require swapping out the buffer, tube and spring. Heavier rifle length buffers are not very common, but you can increase the weight of your bolt carrier group for a similar effect with this:

http://www.davidtubb.com/carrierweight-ar15

[nate76239]

The rifle length buffer is 5.2oz, if you swapped to a carbine heavy buffer as those at the range recommend the Spikes ST-T2 is 4.1oz and the ST-T3 is 5.4oz so you are already near the heaviest weight

[NorCalFocus]

1pm? Sounds over gassed. An adjustable gas block would be more of what I would invest in.

[IRS-form-4029]

Who made your bolt and barrel?

DEZ Arms made the 16" retro barrel and I purchased a PSA bolt carrier group. I used Forster Go/No Go gauges and they checked out correct.

[ca727md]

Don't think its the buffer/spring as that comes into play after the di moves the bcg..... sounds more like your gas setup.... could also be related to the twist rate of the barrel, its interior lining and the load you are using.

[FeuerFrei]

I have two AR rifles both with 16" barrels, one with an A1 fixed stock and the other with an fixed A2 stock: What is the correct Buffer and Buffer spring to use, currently the spent casting are being thrown at 1pm, range experts keep telling me to use heavy weight Carbine Buffers but I don't want to spend the money because I don't believe this is to be true any thoughts or advise?

5.2oz rifle buffer with rifle spring is a good combo for 16 in. over gassed AR clone.
Swapping a steel weight for a tungsten weight from an H carbine buffer will slow it down more. Rinse and repeat if necessary. 5 steel weights in a rifle buffer.

Adjustable gas is the best way to tame it.
Otherwise I say any reliable ejection is good ejection and let the pedantic range experts keep their own company/advise.

[penguin0123]

Otherwise I say any reliable ejection is good ejection and let the pedantic range experts keep their own company/advise.

Not if you are getting bent rims or extractor swipes. Speaking of which, OP have you checked your brass?

Gewehr 43 is notoriously overgassed and they beat themselves to death in short order, but they do keep running in the horrid conditions of the Eastern Front. Unless you have no time/means to clean and consistently have mud mixed with blood from Yuri and Boris all over your action, there are more sensible ways to do things.

[SloChicken]

1pm? Sounds over gassed. An adjustable gas block would be more of what I would invest in.

how do you know it isn't 1AM? Mine does the same thing but at 1AM.

[NorCalFocus]

how do you know it isn't 1AM? Mine does the same thing but at 1AM.

Lol total thought lapse. Should have been 1 o'clock

[akjunkie]

Isnt 1-2 o'clock normal? That's what the brass deflector is for. LEFT handed shooters.

[RobertMW]

Isnt 1-2 o'clock normal? That's what the brass deflector is for. LEFT handed shooters.

It should still be coming out closer to 0300 (1500 for you afternoon folks).

Throwing brass that hard forward usually means you are ripping the round backwards so fast that the ejector is not pushing the case out of the ejection port before hitting the end of travel, you are bouncing the brass off the ejection port, and if it's real bad the brass can jump back in front of the bolt for one of these.

[NorCalFocus]

Isnt 1-2 o'clock normal? That's what the brass deflector is for. LEFT handed shooters.

3-5 o'clock is normal.