Phone Orders 307.675.1191
 

AR15 FLAT TOP BIG HOLE UPPER RECEIVER FOR COLT SP1

AR15 FLAT TOP BIG HOLE UPPER RECEIVER FOR COLT SP1
AR15 FLAT TOP BIG HOLE UPPER RECEIVER FOR COLT SP1
AR15 FLAT TOP BIG HOLE UPPER RECEIVER FOR COLT SP1
AR15 FLAT TOP BIG HOLE UPPER RECEIVER FOR COLT SP1
AR15 FLAT TOP BIG HOLE UPPER RECEIVER FOR COLT SP1
AR15 FLAT TOP BIG HOLE UPPER RECEIVER FOR COLT SP1
AR15 FLAT TOP BIG HOLE UPPER RECEIVER FOR COLT SP1
AR15 FLAT TOP BIG HOLE UPPER RECEIVER FOR COLT SP1
AR15 FLAT TOP BIG HOLE UPPER RECEIVER FOR COLT SP1
AR15 FLAT TOP BIG HOLE UPPER RECEIVER FOR COLT SP1
AR15 FLAT TOP BIG HOLE UPPER RECEIVER FOR COLT SP1
AR15 FLAT TOP BIG HOLE UPPER RECEIVER FOR COLT SP1
AR15 FLAT TOP BIG HOLE UPPER RECEIVER FOR COLT SP1
AR15 FLAT TOP BIG HOLE UPPER RECEIVER FOR COLT SP1
AR15 FLAT TOP BIG HOLE UPPER RECEIVER FOR COLT SP1
AR15 FLAT TOP BIG HOLE UPPER RECEIVER FOR COLT SP1
AR15 FLAT TOP BIG HOLE UPPER RECEIVER FOR COLT SP1
AR15 FLAT TOP BIG HOLE UPPER RECEIVER FOR COLT SP1
(Click to see larger image and other views)
SKU: ARR-7370
AR15 FLAT TOP BIG HOLE UPPER RECEIVER FOR COLT SP1
Price: $199.95

Product Details
Now you can add all the modern conveniences to your Colt SP1 or other Colt Sporter lowers that use the larger .315 inch front pin hole. 

These big hole flat top uppers are designed with a .315 front pin hole to fit early Colt SP1 and Sporter Lowers. 

Product Notes:
* Made from a 7075-T6 aluminum forging
* Mil-Spec hardcoat anodized Colt Grey. A great match for Colt lowers.
* .315 front pin hole that fits early Colt lowers and the SP1.
* Picatinny Rail
* M4 Feed Ramps
* Weight: 6.9 ounces

Product Reviews
Rated: Empty Star Empty Star Empty Star Empty Star Empty Star
Rate this product:  1   2   3   4   5 

"Amazing Product! Superb Customer Service"

Danny on 7/15/2023 7:05:16 PM

Empty Star Empty Star Empty Star Empty Star Empty Star

Product Review: Fit and finish was top notch. Gave my Colt SP1 a huge upgrade. Dont have to deal with conversion pin loss anxiety. I run my rifles hard and have had a few close calls with loose conversion pins. But, not any more 😀

"very well made"

Anthony Cioffi on 7/12/2020 9:02:49 AM

Empty Star Empty Star Empty Star Empty Star Empty Star

Product Review: Very good piece if you have an older Colt you'd like to add a more modern upper to. Find someone else who makes one of these and I'll send you a quarter. Mine is more black then gray but that is NOT an issue. The tolerances are extremely tight. I assume to account for the possibility of being used on lowers that have been used extensively over the years. I'm VERY happy with that. Nothings worse than a floppy Colt! I got my order in exactly 7 days. In today's world that is amazing. Thanks to RTG.... More details

"Perfect on Colt SP1"

osmosis on 10/11/2019 9:11:13 AM

Empty Star Empty Star Empty Star Empty Star Empty Star

Product Review: Absolutely perfect fit on an early 80's Colt SP1. Solid closure and no rattle.

Sign Up For Newsletter

About Us

RTG Parts LLC has been family owned and operated since its inception in 1999. RTG Parts was established to provide increased customer access to top quality military surplus parts, magazines and accessories. We are proud to offer an extensive inventory of rare and unusual items as well as select new production U.S. made parts. RTG Parts is committed to keeping prices low while maintaining a high level of customer service. We believe we offer the best combination of value and quality found anywhere in the firearms community.

Contact Us

307.675.1191 931 Frank St.
Sheridan, WY  82801