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H&R 300 AAC Blackout Handi-Rifle Review So far I have covered in detail the external and operational features along with disassembly of the H&R 300 AAC Blackout Handi-Rifle. In this part of the review, I show many photos allowing you to get a good look at the internal features of this rifle. As always, you can click on a photo to bring up a higher resolution image allowing you to see the finer details in the photos.
Barrel Assembly The phosphate finished barrel measured 16.31" and has a light weight profile that measures about 0.71" at the middle of the necked down portion of the barrel. Attached to the barrel is the barrel lug and the forend threaded interface. The barrel lug houses the extractor components; extractor, extractor spring and cam. When the action is closed, the breech face pushes the extractor forward and rotates the cam and cam pin to the positions shown in the photo below. Also notice the notch at the rear of the lug that is engaged by the barrel catch when the action is closed. The photo below shows the cam rotated down which pushed the extractor rearward. The cam is rotated down by the spring pin which goes through the cam and makes contact with the guides on the inside of the receiver. If you look closely in the photo below you can see that there are actually five grooves for the 5R rifling. Also notice how the extractor is higher than the bottom of the chamber. This is needed for the extractor to seat properly in the case rim. This also puts a little up pressure on the case as you insert or remove the cases. Frame Assembly The frame is a steel investment casting with a phosphate finish. I'm no H&R aficionado, but I believe this is a SB2 frame which can be identified by the skeletonized area on the stock mating surface around the stock bolt hole. The white circle below identifies the guide in the side of the frame which guides the pin in the cam to push the extractor rearward. Stock The stock is a polymer material that is most likely glass filled nylon. The stock includes a grip cap that serves no clear purpose other cosmetic. The interface of the stock to the frame is simple with no alignment system other than the way the slight "V" shape and two curved surfaces mate together. The inside of the stock has a hollow cavity which would allow you to store some basic survival gear for the unknown. Recoil Pad Stock Bolt Forend The forend is made from a polymer material which is most likely glass filled nylon. The sling swivel stud is screwed directly into the polymer material. Forend Mount Screw Optics Mount Rail The optics mount rail is made from aluminum and has a standard Picatinny rail profile. The rail measures 6.0" in length and has a height of about 0.30". Thread Protector The thread protector is made from anodized aluminum with an internal 5/8-24 TPI thread. The length measures 0.63".
Thoughts Overall it looks like H&R has produced a simple, functional and value oriented firearm. For more detailed photos and commentary, make sure you check out the other parts of this review and feel free to leave comments on my Reader's Comments page. The following links are provided to help you see other parts of this review.
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