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Beans's Review of Spikes Tactical 5.56 HPT/MPI Bolt Assembly
1) I trust Spikes Tactical. I trust the people there. Every purchase and interaction leaves me the same resounding image.
Consummate Pros.
I’m coming back to phosphate after testing NiB and Nitride coatings. I like advanced coatings with added lubricity.
That said:
There is merit to mixing parts with varied finishes. I found that slick coatings don’t hold lubricants well and phosphate finish parts do. Phosphate parts seem more true to specs and are normally more affordable unless you’re shopping Colt, FN, DD etc.. I like the heated release of lube from the inside of the BCG. (IMHO) It lightly lubes the moving parts and protects contact surfaces of the NiB or Nitride bolt assembly/carrier.
This ST bolt went in like it belonged in the Lantac Carrier.
I also have one in a chromed Young Mfg. carrier.
Passed headspace gauges and fire test on:
Hanson Performance .750 16”
Spikes Tactical CHF M249 16” LW .750
Noveske Afghan 14.5” Mid test coming soon.
Has ST stamped next to MPI - HPT markings.
Consummate Pros.
I’m coming back to phosphate after testing NiB and Nitride coatings. I like advanced coatings with added lubricity.
That said:
There is merit to mixing parts with varied finishes. I found that slick coatings don’t hold lubricants well and phosphate finish parts do. Phosphate parts seem more true to specs and are normally more affordable unless you’re shopping Colt, FN, DD etc.. I like the heated release of lube from the inside of the BCG. (IMHO) It lightly lubes the moving parts and protects contact surfaces of the NiB or Nitride bolt assembly/carrier.
This ST bolt went in like it belonged in the Lantac Carrier.
I also have one in a chromed Young Mfg. carrier.
Passed headspace gauges and fire test on:
Hanson Performance .750 16”
Spikes Tactical CHF M249 16” LW .750
Noveske Afghan 14.5” Mid test coming soon.
Has ST stamped next to MPI - HPT markings.
Would Recommend:
Yes
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