AR breakdown block
I purchased the orange version of the AR breakdown block for disassembly of my stock Bushmaster front sight, It was close but did not match the pins on my AR, somewhat disapointing
Bench block for Ar-15
The manufacturer needs to do quality control for the bench. The holes do not line up correctly and that’s not acceptable due to the facts of advertising being wrong.
Brownell’s A2 sight and Gas Block holding fixture
The Brownell’s A2 sight and gas block hold fixture is probably the go to fixture for holding and driving out the gas block pins. It gives you a secure nesting hold for safely holding the A2 sight. My only complaint is that the fixture that I received was black and not orange as was pictured. I wanted the orange fixture to give better contrast to the parts I’m working with.
Not Useful for S&W
I didn't see anything in the directions that warned that it won't work for the S&W 15. The tapered pins drive out the opposite direction from the Colt. And with the S&W 15 costing less that the typical Colt, I see more S&Ws than Colt. If you don't notice before you start, you can have some serious problems. For S&W 15, just go back to your standard bench block, or even a piece of hardwood (and pay attention to which end is the small end on the tapered pins).
Front Sight Bench Block
You would think a bench block designed to be used with the standard front sight base would fit said front sight base. There is far too much rotational play in this block to justify the price tag. Still usefull for the gas tube roll pin I guess but it didn't really help me at all with stubborn taper pins. I'll keep it around since I already bought it but would pass on this if I were you.
Nice to have if price is right
I just removed 2 of my LE6920 FSBs, this block helped support underneath while I punch out the taper pins. I don't think I will be using it anymore for other builds. My opinion is a block of wood would do fine if only doing couple of builds requiring front sight removals. The gas tube roll pin removal/installation is also supported by this tool.
Good Block, but not Perfect
This block is designed to fit a variety of front sights, which means that it does not fit many of them perfectly. It is still better than trying to drive out the taper pins using any other method. The barrel wobbles a bit and had to be held in place in order to get a clean strike on the pins. Still a worthwhile investment if you are going to work on AR's.
Two-piece handguard only
I should have read the user reviews before buying this because the product description is very vague. This block is designed for use on AR's that have the factory two-piece handguard removed. Unfortunately my AR has a one piece free-float handguard which makes this bench-block useless without major modifications. I'm very mech-inclined but haven't yet decided to modify or return this product. My gas-block pins are very tight so I need something like this tool to remove them.
Good, but...
As others have said, this has very limited use/application. To use this bench block (without modification), you must have 1)Milspec FSB, 2)NOT have FF hand guards. It is easy enough to clearance areas on the block with a Dremel tool though (except for the mess of orange plastic shavings that get everywhere...) Word of caution... if your taper pins are moderate to very tight (and beyond), you MUST ensure your barrel/FSB does not move AT ALL while pounding out the pins. This bock does not (without modification - see Dremel tool) hold the FSB steady enough - and I had to clamp the block/FSB to a sturdy bench with a c-clamp until I made some clearance passes with the Dremel.
