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Posted: 7/8/2005 2:59:52 PM EDT
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What does it mean when it says in an M4 description that it has a "forged front sight base" as well as when it says "Full weapon, less stripped lower receiver". Thanks |
The weapon has just that: A forged Front sight base(pounded into shape from a solid piece of steel) vs. a Cast FSB(Injection molded steel). As for the second description, it sounds like a Complete parts kit that does not come with the Lower Reciever, hence being able to be purchased/shipped to your house instead of going through an FFL. edited for additional clarification. |
It means the front sight base was forged instead of cast. Forges is the preffered (stronger) option and the one required for military guns.
It means it's a complete kit with all parts - you just need a stripped lower receiver (the only part you need to go through a FFL to buy) to build it into a complete rifle. |
When it comes to metals, FORGED is usually always better-Wayyy more durable, less prone to bubbles, impurities and stress cracks, breakage as compared to Cast metals. People use cast parts to cut manufacturing costs at a cost of loss of durability to the customer. A cast vs. forged FSB look the same at glance, except you will be able to see flashing(excess) from where the metal molds came together in cast parts..General rule: Avoid Cast Parts! edited to add: You won't see Cast FSBs on any Gov't issue rifles. |
All Bushmaster recievers(2005 SEBR) are forged-Their FSBs are too. Olympic Arms offers a cast receiver Plinker but I don't think I'd be too comfortable dropping one on the deck. 
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Olympic does NOT offer a cast receiver Plinker any longer. All Plinkers are now forged, upper and lower. |
Things that make you go Hmmmmm. 
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