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Posted: 1/2/2009 10:38:57 AM EDT
| Im looking for a upper, One without a front site that i can mount a flip up site on. Looking at a RRA upper. One there webstie you can choose between "Weaver Type Gas Block" , "Gas Block/ Detachable Front Site" , "RRA Flip Front site gas block". What is the difference between these? Pictures will be helpful. Just looking for the Upper , plan on geting my own front site. |
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All of these photos are shown on www.rockriverarms.com under 'Barrel Assemblies/Parts' and 'Mounts/Weapon Sights'.
Here's the gas blocks: 
And here's the front sights: 
The low profile block is nice whether the hand guard will be covering it or not. Here's an example of the low profile gas block covered by the hand guard and a front flip sight mounted to the quad rail hand guard: 
Here's an example of the front flip sight gas block: 
Some like to use the railed gas block to mount their front flip sight to. These gas blocks typically need a taller front flip site than the ones that mount onto the hand guard. |
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