Proof Research PROOF 138700 For Sale from: The Exchange ( FFL) | Positive feedback: 98% View | Verified Seller | 16051 Completed Sales View Sellers Items Proof Research PROOF 138700 For Sale from: The Exchange | Positive feedback: 98% View | Verified Seller | 16051 Completed Sales View Sellers Items Proof Research PROOF 138700 957810854 843068138700 138700 Proof Research Non-Guns 899.00 USD instock The Exchange Seller Since: Jun. 2002 Identity Verified ( Brookings, SD ) Trusted Seller This seller is an FFL City: brookings State: SD Phone: 605-692-2013 $899.00 Add To Cart Buy It Now 3% Credit Card Processing Fee will apply. Please Login/Register to Order Login or Register to buy Shipping: $18.00 (or FREE in-store pick up!) Accepted Payment Methods: Returns: No Returns This Seller Accepts Instant Online Payments Send Message to The Exchange You must login or register to send a message to this seller. Contact Seller as Guest Message To Seller Can't send a blank message Email * Enter email address Invalid email That Email Address is already in use. If you typed your email correctly, you are already registered and you should login or click here for the password recovery system. First Name * Enter first name Last Name * Enter last name Phone * Enter phone number Invalid phone number Address 1 * Enter a street address Address 2 City * State * -State- AK AL AR AZ CA CO CT DC DE FL GA GU HI IA ID IL IN KS KY LA MA MD ME MI MN MO MS MT NC ND NE NH NJ NM NV NY OH OK OR PA PR RI SC SD TN TX UT VA VI VT WA WI WV WY Zip * Enter city Please select state Enter zip code Invalid zip: U.S., PR only. Already have an account? Login Contact Seller Description: We have designed our AR barrels with the goal of improving performance and reliability in the AR platform. Our Caliber Matched Gas System (CAMGAS) results in a gas system that is tuned specifically for the cartridge and length of the barrel. The AR-15 Platform was originally designed around the 223REM and 5.56NATO cartridges and the AR-10 was designed around the 308 Win/7.62NATO round. With higher performance cartridges such as the 22 Nosler and 6.5 Creedmoor the bore pressure remains higher further down the barrel. By moving the port location we ensure that the gas system pressure is the same as what the AR platforms were originally designed around. The result is a recoil impulse that is noticeably softer less fouling in the receiver increased reliability of extraction and less wear and tear on brass. This helps keep you on target and shooting while taking advantage of the latest high performance cartridges. - Recommended components: - Full Mass Bolt Carrier Group - Full Mass Buffer - Adjustable Gas Block - * All barrels with Intermediate Rifle +1 Rifle +2 and Rifle +3 gas systems include the proper gas tube. - * Our AR-10 barrels use a deep feed system that makes the feed ramps compatible with the feed ramps in the lower receivers of both DPMS and Armalite style rifles. - * It is recommended to double check and ensure proper headspace before firing your rifle. Condition: New In Box Brand: Proof Research Model: 138700 Item #: 957810854 Stock No.: 156965304 UPC: 843068138700 Location: SD Trades Accepted: No Qty: 4 Available Share: Shipping Notes: AmmoReady Merchandise Shipping Fee Items You've Viewed Recently Proof Research PROOF 138700 $899.00 SELLER: The Exchange (FFL Dealer) Add To Cart