The most combat reliable AR-15s made should have the following: (IMO.)
- Nickel Boron, or Teflon on upper receiver, lower parts kit, and bolt carrier group.
Here you have options.
*Spike's Tactical Bolt Carrier Group
*FailZero Bolt Carrier Group
*LWRCi Bolt Carrier Group (If you're going to install a piston - Essentially not needed. But I like it, and won't withhold the information.)
- Nitriting the barrel. Barrel should be cold hammer forged.
Most barrels on the market are cold hammer forged anyway. If I bought a bushmaster, I'd get rid of the barrel anyway. You don't have to, but it's just a suggestion. I'd recommend BCM, or Noveske. (More towards Noveske.)
- 9310 for bolt material, it would be optimal if bolt also had Nickel Boron/Teflon coating.
Recommended Bolts:
Colt, BCM, Spike's Tactical, LWRCi Advanced Combat Bolt. (Not proprietary.)
- Better trigger
I'd recommend. LMT 2 stage, KAC 2 stage match, or LWRCi enhanced fire control group. (or LWRCi Nickel Teflon Coated LPK while your at it, though the Bushmaster LPK should serve you just fine.)
- Heavier barrel (double chrome lined, with match chambers)
See Noveske barrels.
- 5 Coil Extractor Spring
A must on all defensive ARs in my opinion.
- Chrome Silicon Extra-Power Action Springs
Sprinco makes these. Will help with a neglected rifle, DI or Gas Piston.
Relatively cheap, with a noticeable upgrade in reliability, and making sure the weapon properly goes into battery, even in AK like conditions.
- H2 (or H3) buffers (Spike's Tactical ST-T2 buffer is my choice. FWIW.)
This makes the Extra Power Action Springs all the more effective.
- Midlength gas systems
Less parts wear, softer shooting.
- A Piston (If it REALLY makes you feel better.....)
Not needed, but if you aren't comfortable with the attributes of the DI system, and it's problems, and virtues. Then you have the option of a short stroke Gas Piston. It has different problems, and virtues, which I prefer, but to each his own. The DI system will serve you JUST fine. If you choose to go this route, I strongly recommend, Adam Arms with the LWRCi bolt carrier, they sell them on their website.
- Gas Block Mounted Front Sights (longer sight radius, lower profile sights)
KAC makes my preferred set of Gas Block Sights, though they cost more than most barrel assemblies.
Alternatively VLTOR makes a Gas Block Mounted Front Sight, much cheaper, very effective.
- Crane O-Rings
Helps with extraction.
If this rifle will be used to defend your life, this is my recommendation, while it'll be no doubt pricey, how much if your life worth? When you need it, you REALLY need it.
Input from others about my recommendations are welcome, and I hope for them to weigh in.
Last edited by Magic_Salad0892; 05-12-10 at 04:46.
We miss you, AC.
We miss you, ToddG.
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