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Posted: 3/13/2016 5:03:56 PM EDT
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Putting together a lightweight and this is one of the final pieces.
Anyone have a standard BCG shaved down? I have a spare one laying around that I'd like to use rather than buy something new if possible. I've seen the Spikes lightened BCG that looks like Swiss cheese. However, prior to just drilling, i'd like some advice. Any suggestions or contacts? |
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The full weight bolt carrier delays the opening of the bolt which allows pressures to subside to safe levels before the brass is ejected.
Lower the carrier weight and you'll get ejection problems including rims being ripped off your brass cases. The companies selling lightweight bolts (JPRifles etc.) do so to a limited market of "race gun" competitors who shoot lighter than standard bullets, usually 40 or 45 grain weight, while racing against a stop watch. Lightweight carriers are not wanted by the average AR-15 owner and can't be recommended, especially if you just want the lightest possible rifle. The weight you remove from the carrier will cause wear issues and pound the rifle for no good reason. If you insist on going this route buy a dedicated lightweight BCG from a known good source and keep the original G.I. spec carrier on hand for future use. |
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Quoted:
The full weight bolt carrier delays the opening of the bolt which allows pressures to subside to safe levels before the brass is ejected. Lower the carrier weight and you'll get ejection problems including rims being ripped off your brass cases. The companies selling lightweight bolts (JPRifles etc.) do so to a limited market of "race gun" competitors who shoot lighter than standard bullets, usually 40 or 45 grain weight, while racing against a stop watch. Lightweight carriers are not wanted by the average AR-15 owner and can't be recommended, especially if you just want the lightest possible rifle. The weight you remove from the carrier will cause wear issues and pound the rifle for no good reason. If you insist on going this route buy a dedicated lightweight BCG from a known good source and keep the original G.I. spec carrier on hand for future use. This is going to be a competition gun so I'm prepared to fuss with it to get it to run correctly. I'm going to be running 55gn fmj only in this gun. |
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Quoted:
The full weight bolt carrier delays the opening of the bolt which allows pressures to subside to safe levels before the brass is ejected. Lower the carrier weight and you'll get ejection problems including rims being ripped off your brass cases. The companies selling lightweight bolts (JPRifles etc.) do so to a limited market of "race gun" competitors who shoot lighter than standard bullets, usually 40 or 45 grain weight, while racing against a stop watch. Lightweight carriers are not wanted by the average AR-15 owner and can't be recommended, especially if you just want the lightest possible rifle. The weight you remove from the carrier will cause wear issues and pound the rifle for no good reason. If you insist on going this route buy a dedicated lightweight BCG from a known good source and keep the original G.I. spec carrier on hand for future use. I can ONLY agree with your last sentence. I currently have north of 4,600 rounds on one of my AR's running a J.P. Enterprises LMOS carrier. It's been fed a mixture of around half Hornady .223 TAP Urban 40gr. and the rest a mixture of whatever I could pick up cheaply...Wolf, Tula, Federal M193, Federal M855, etc. with ZERO malfunctions!!! I'm running lightweight carriers in five other AR's including two with Aluminum carriers, one of which has thousands of rounds through it (most on full auto) and it's almost four decades old. |
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