I have been on hiatus for some time now due to uncontrollable life events. I am back now and hope to get more reviews out of equipment that I have purchased over the past several months. First up is the Bison Armory 6.8 SPC upper.
BISON ARMORY 6.8 SPC UPPER SPECIFICATIONS –
- 18″ SPR profile stainless steel 6.8mm barrel with 4-groove 1:11″ twist
- M4 feedramps, hand fit to receiver for smooth cycling
- SPC II Chamber
- 5/8″ – 24 TPI muzzle threads
- Mid length gas system
- Basic free float Mid or rifle length forearm
Bison Armory 6.8 SPC BR-15 rifle barrels are made by E.R. Shaw and White Oak Armament. Shaw makes our standard barrels while White Oak uses Shilen blanks to make our match grade barrels. All of our 6.8 SPC barrels are made with the following specifications:
- 6.8 SPC II chamber
- 1:11″ twist
- M4 feed ramp cuts
- 416 stainless steel
- Button rifling
- 5/8-24 muzzle thread or 11 degree target crown
Our barrels are capable of MOA accuracy with quality ammunition, and our profile supports Ops Inc 12th Model silencers, as well as silencers from Surefire, AAC, Gemtech, and YHM.
COMPLETE DESCRIPTION FOUND HERE : http://bisonarmory.com/barrel-specs/
Now that you know a little about the upper set up let me get into my review.
6.8 SPC II Round:
I have owned several AR platforms but this is my first AR platform chambered in 6.8 SPC II and I absolutely love the round and everything about it. Being a resident in the state of Virginia we are regulated to the caliber size used to kill game such as Deer as many other states do as well. Virginia regulations regulate the hunter to use a caliber larger than a .24 to take large game. The development and availability of the 6.8 SPC II has made it viable for hunters like myself to be able to afford an AR platform chambered in a larger caliber without hurting the pocket book. This is mainly because with the 6.8 SPC II round you can use any standard AR-15 lower because the round does not exceed the overall length of the .223/5.556 NATO round. The caliber bullet that the 6.8 SPC II shoots is a .270 caliber round which means it is well within the means of the regulations of many states.
The Bison Armory Upper that I have mounted onto a New Frontier Armory Polymer Lower is the most accurate rifle that I own by far that is a Semi-Auto. Here is a picture of 4 shots that I took at 100 yards with OPEN 45 Degree Canted sights at 100 yards free handed. Not to bad I have to say so my self. I had one flyer because of the my shooting in the bottom right corner of the target. 2 in the middle one in the top right target.
THE UPPER (FIT AND FINISH):
The fit and finish of the Bison Armory 6.8 SPC II upper is out standing. I took the rifle deer hunting all season and the upper finish has shown no wear or scratches from normal carry through the woods, and up and down tree stands. The fit to the lower is extremely tight. I feel that part of that may be related to the lower as well as they are know to have a tight fit. The finish is comparable to the S&W AR series. Here is description from : http://bisonarmory.com/upper-receivers/
Bison Armory carries forged and billet upper receivers for 6.8 SPC, as well as billet receivers for our 7.62 NATO platform rifles. Forged receivers are made to military specifications from aluminum forgings. Billet receivers are made from a solid rectangular aluminum billet. The primary difference between forged and billet receivers is that billet receiver external geometry is typically different from that of the forged counterparts. Instead of trying to recreate the forged exterior of standard upper receivers, manufacturers make the best of their situation and add geometric bulk to the receivers to produce a superior product. Because aluminum is so light weight to begin with, the added material adds a lot of strength to the receiver without adding a lot of weight.
For the quality of the upper and what you are purchasing (Made in the USA) you will not find a greater value else where. Yes you maybe able to find a cheaper upper from places like Palmetto State Armory but again it is like the old saying “You get what you pay for.” Not saying anything bad about Palmetto State Armory because they offer great products at a great price, but if your goal with a 6.8 SPC II Upper is accuracy, durability, and dependability I highly recommend Bison Armory. Their Customer Service is only equivalent to something you find out of the 50’s when respect, service, and customer appreciation was still a staple in the retail industry. Check them out if you are in the market for a 6.8 SPC II Upper and if you have any questions about it feel free to contact them I have never had a problem with getting answers and quick replys.