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Sharps XPB Carrier Group Complete in NiB-X
Sharps XPB Carrier Group Complete in NiB-X
Sharps Rifle Company XPB (Xtreme Performance Bolt) Carrier Group Complete - NiB-X


 
Order Yours Today! The Sharps Xtreme Performance Bolt (XPB) Carrier Group Complete is precisely machined from S7 tool steel. The XPB undergoes a 24-hour thermal cycle proprietary heat treatment and is finished with NiB-X (Nickel Boron) Coating.
Your Price: $249.99
Sale Price: $189.99
Savings: $60.00

Stock Status:In Stock

Availability: Usually Ships in 3 to 5 Days
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Description
 

The Sharps Xtreme Performance Bolt (XPB) Carrier Group Complete has the same design as the Balanced Bolt Carrier Group and is precisely machined from S7 tool steel. The XPB undergoes a 24-hour thermal cycle proprietary heat treatment and is finished with NiB-X (WMD's nickel boron) Coating. The XPB Carrier Group Complete displays the SRC logo machine cut and visible when the ejection port door is open. The XPB fits standard AR-15/M16/M4 rifles chambered in .223/5.56mm, 25-45 Sharps and 300 Blackout calibers.

We offer a 30-Day Money Back Guarantee on our complete line of Sharps bolt and bolt carrier products.

Technical Data
Bolt: S7 Tool steel, shot peened NiB-X coated (U.S. Patent No. 9,863,729)
Bolt Carrier:
S7 Tool steel, shot peened and NiB-X coated
Gas Key: 4130 Steel, attached with Grade 8 hardware, properly staked and NiB-X Coated
Cam Pin: 4340 Steel, NiB-X coated
Firing Pin: Mil Spec firing pin made of 8740 steel, center‐less ground and Hard Chrome coated
Extractor: 4340 Steel, NiB-X coated
Ejector: S7, shot peened and Manganese Phosphate coated
Extractor Pin: S7, shot peened and Manganese Phosphate coated
Mil-Spec Ejector Springs, Firing Pin Retaining Pin, Gas Rings

Batch MPI and HPT tested
Tensile strengths of 1550-1600 mpa, or 220,000-235,000 psi.
Toughness of over 200 ft./lb. Charpy C-Notch
HRC of 46 yields a 15% increase in hardness at the same toughness comparing to Carpenter 158 & 9310


NiB-X Coating:

Specifically engineered NiB-X nickel boron coating to provide long life, high reliability and easy cleaning and maintenance. The BCG components are coated and polished to reduce fouling adherence. Coating is guaranteed for life against chipping, spalling or flaking. Over 30K rounds in Government protocol endurance testing did not wear the coating off. Especially beneficial in short barrel setups and suppressed platforms.
Hardness HV 0.05: HRC 70+
Friction vs. steel, dry: 0.1
Color: Hyper Silver (Polished)



Average Rating: 5 of 5 Total Reviews: 9 Write a review »


  0 of 0 people found the following review helpful:
 
Sharps XPB Carrier group December 29, 2018
Reviewer: Gary Jones from Costa Mesa, CA United States  
I recently purchased the XPB carrier for a 300 AAC pistol . Its smooth as butter and I only as of yet have put 50 rounds through it. I t functioned well I want to get another 100 rounds through it before I clean it.

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  0 of 0 people found the following review helpful:
 
Bcg December 16, 2018
Reviewer: Jackie Jones from Lockport, IL United States  
Always a great product.

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  0 of 0 people found the following review helpful:
 
Love it December 11, 2018
Reviewer: Geovanny Matias from Gypsum , CO United States  
Love it love it

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  0 of 0 people found the following review helpful:
 
worth the wait December 5, 2018
Reviewer: Anonymous Person  
Just got my bolt carrier group today. she's beautiful and cycles smoothers then sweet walls of glory.

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  0 of 0 people found the following review helpful:
 
Great December 5, 2018
Reviewer: Dennis Kelly from Kershaw, SC United States  
Great product would highly reccomend

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