I had been looking to this reference to guns being dug up from teh Litttle Rock Arsenal for a while...

Head Quarters District of Arkansas
Little Rock, Arks Sept 22nd 1862.
Colonel:
The report of Br. Genl [James S.] Rains� command, herewith forwarded, needs exploration. It puts his armed infantry at 2901, his unarmed infantry at 2805, his artillery at 14 pieces and his cavalry at 9677, all armed. His infantry consists of two brigades, - his own and Col [Charles A.] Carroll�s, but during his command of the entire force, his own infantry forms part of Carroll�s brigade. The armed infantry carry shot-guns, sporting rifles and muskets. - the last named being in the proportion of about one in five, of which about one-fifth have bayonets. They are partially instructed in company drill, but know nothing beyond that. The unarmed infantry were marched to camp and organized while I was there, and are but little instructed. His artillery consists of three batteries - two of them are of two 12 pounder each, bronze. The other is of two 12 pounder rifles, bronze, captured at Lone Jack, and four iron 6 pounders, sent from the arsenal here, where they had long been inserted in the ground, as �corner posts�. The carriage and harness are much worn. The supply of ammunition small. The horses in tolerable condition. The companies poorly drilled. His cavalry consists of one Arkansas regiment, which is of Carroll�s brigade, - three Missouri regiments constituting [Joseph O.] Shelby�s brigade, - three Texas regiments, which are of [Douglas H.] Cooper brigade, - one mixed battalion of Missourians and Arkansans, also of Cooper�s brigade, and one mixed battalion of Arkansans, Missourian, and Half Breed Cherokees, also of Coopers brigade. Col Cooper reports in addition 5568 Indian Cavalry, of which only about 600 seemed to be under his command, and they but nominally so. The balance of this Indian force appear to exist on paper exclusively. Carrolls Arkansas cavalry regiment and Coopers mixed battalion of Missourians and Arkansans are partially drilled. Shelbys Missouri brigade, just organized, is commencing in drill. The three Texas regiments and the mixed battalion of Arkansans, Missourians, and Half Breeds Cherokee are wholly undrilled and undisciplined. As for Col Coopers 5568 Indians, they are not worth their rations, as cavalry. Genl Rains� effective cavalry force does not exceed 2000 men. His effective infantry force is 2901. The strength of his artillery has been stated. He is greatly outnumbered by the enemy in his front, holding a line fifty to sixty miles north of his own, which corresponds nearly to the north line of Arkansas. It is absolutely necessary that he continue to hold that line. If is lost, he must retire to the Arkansas river, 100 miles south, giving up the Indian Country entirely, and going where there is not subsistence for five days for his command. His supply of ammunition, for small arms, is under 20 rounds to the effective men. He has about one tenth the regulations allowanced of cooking utensils, - about one twentieth that allowance of working tools, - about one fifth of the established allowance of transportation. He will not average one tent to the company. Large numbers of his men are without hats or caps, not above one in every five has a blanket, or any substitute for one. Over 1000 are absolutely barefooted, and many more are virtually so.
Respectfully T. [Thomas] C. Hindman Maj Genl Comdg
Col James Deshlen A.A. Genl. http://cdm.sos.mo.gov/cdm4/page_text.php?CISOROOT=/mack&CISOPTR=10427&CISOBOX=1&OBJ=10681&ITEM=169